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EXTERNAL CAVITY TUNABLE LD LIGHT SOURCE ECL-210

7. Operation Procedures

7.1.

Contents of Fundamental Operation

7.2.

Turning Power On

7.3.

Optical Fiber Connection

7.4.

Selecting Units in MLS

7.5.

MLS MODE

7.6.

MLS Matrix LED

7.7.

Shuttle Switch

7.8.

Driving LD and Shutting LD Off

7.9.

Setting Wavelength

7.10. Setting Optical Output Power
7.11. ACC Function

7.12. Fine Tuning Function
7.13. Coherence Control

7.14. Low Frequency Modulation
7.15. Setting GPIB Address and Delimiters

7.16. Parameter Memory of Each Unit
7.17. Plug and Play

7.18. Shutting Power Off

8. Communication Interfaces

8.1.

GPIB Control

8.2.

RS-232C Control

8.3.

Control Commands

9. Example Programs

8.4.

GPIB Program

8.5.

RS-232C Program

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Содержание ECL-210

Страница 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Страница 2: ...EXTERNAL CAVITY TUNABLE LD LIGHT SOURCE Operation Manual ECL 210 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 3: ...consequential damages in connection with the use of this material Copyright 2000 Santec Corporation Japan No part of this document may be reproduced stored in a retrieval system or transmitted in any...

Страница 4: ...acking Materials The original packing materials are required to ensure the safe long term storage and safe transportation of this equipment It is recommended that all packing materials are kept for th...

Страница 5: ...3 4 Precise Optical Power Control 3 5 Built in Attenuator 3 6 Fine Wavelength Tuning Control 3 7 Plug Play 3 8 Communication Interfaces 4 Principle of Operation 4 1 ECL Principle of Operation 4 2 The...

Страница 6: ...ength 7 10 Setting Optical Output Power 7 11 ACC Function 7 12 Fine Tuning Function 7 13 Coherence Control 7 14 Low Frequency Modulation 7 15 Setting GPIB Address and Delimiters 7 16 Parameter Memory...

Страница 7: ...nd Maintenance 10 1 Care 10 2 Maintenance 10 3 Cleaning the Optical Connectors 10 4 Changing the Fuse 11 Option 12 Troubleshooting 13 Warranty Artisan Technology Group Quality Instrumentation Guarante...

Страница 8: ...d power stability and high optical output power Used as a stand alone unit or as part of a larger test system the ECL 210 is the excellent choice as a tunable light source to use in optical research a...

Страница 9: ...1 2 ECL 210 Operation Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 10: ...6dBm Flatness dB 0 2 Measured at 6dBm Buit in attenuator dB 0 20 Resolution 0 04dB Typ Environmental condition Operating temp range o C 20 30 Operating humidity range 80 No condensation Storage temp r...

Страница 11: ...ower output Interface Optical connector SC Optical fiber PMF SLOW axis Polarization extinction ratio 17dB Polarization angle error 10o Connector polish APC Angled polish connector 1 RF Modulation Modu...

Страница 12: ...pecification Item Unit Min Standard Max Remarks Slot 2 I F GP IB Voltage V 90 250 Switch type Frequency Hz 48 62 Max Power W 50 2 Units Dimentions mm 230X412X88 WXDXH Weight kg 6 Without Units Item Un...

Страница 13: ...2 4 ECL 210 OPERATION MANUAL Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 14: ...at determines light coherence and the narrower the spectrum linewidth the more improved the coherence Considering the length of fiber used or the complexity of some test set ups there is the possibili...

Страница 15: ...The drive circuit with LD protection drives the injection current and APC circuit etc by digi tal PI control adopting optical power monitor signals against the circuit When it reaches to a hardware l...

Страница 16: ...monitor signals and controls optical power automatically by digital PI control When APC mode is active and wavelength is reset almost same optical power can be seen Note that in a oscillation waveleng...

Страница 17: ...r features In particular this structure makes it possible to tune the wavelength of the laser light However the optical output power is controlled by tuning the LD injection current This causes a chan...

Страница 18: ...e when the unit is operated in APC mode When APC is in operation and the APC target value changes if the current reaches its upper limit the lower attenuation level is selected If for some reason the...

Страница 19: ...dded then the system must be start up However it is possible to be plugged in and out with power on In this case re start of the system is unneces sary only by the warm up of the added unit Refer to 7...

Страница 20: ...selected by the optical band path filter OBPF and frequency lock filter FLF and reflected by the external cavity mirror and led from the AR coated surface to LD by the external cavity inside lens onc...

Страница 21: ...h by FLF And the automatic locking wavelength by FLF precisely selecting wavelength enables excellent wavelength stability and repeatability The adopting branching light of coupler achieves high accur...

Страница 22: ...ions This serial communications achieves high independency and flexibility for each unit and MLS MLS has control panel and display and the selection control from each unit directly from MLS and monito...

Страница 23: ...and monitor those by communication control from the direct control from MLS or the external communication systems The param eters changed from MLS can be memorized in each unit by STORE key ref 7 15 A...

Страница 24: ...ont Panel Front panel MLS 2100 Front Panel MLS 8100 1 2 3 4 24 23 27 17 5 14 6 7 8 22 26 25 21 16 20 18 19 15 13 12 11 10 9 4 24 23 27 17 15 5 6 7 8 9 10 26 16 20 18 19 14 13 12 11 25 21 Artisan Techn...

Страница 25: ...t pull slightly with loosing the screw 5 Parameter display This indicates the parameters of each unit and MLS communication parameters 6 SHIFT key This is the key for toggle movement SHIFT ON OFF to o...

Страница 26: ...elected by MLS 13 MODE key This is for changing MLS MODE setting monitoring and controlling parameters of each unit 14 MODE_LED This LED indicates MLS MODE setting monitoring and controlling parameter...

Страница 27: ...ptical output connector from light source unit 23 LF modulation input terminal This is LF modulation input terminal for the control circuit of the light source unit The driv ing current can be control...

Страница 28: ...Installation 3 Power Supply Part The power supply part consists of the power voltage display panel its lid the power supply socket the internal rotary switch for changing voltage and the internal fus...

Страница 29: ...tage change to open the lid and rotate the rotary switch with pressing it If a differ ent power voltage is used make sure the rotary switch is set properly and the correct fuse is used Use a surge res...

Страница 30: ...ion Use the anti surge type fuse 7 Power source socket This system adopted the power code and plug of 3 line type which has grand line for protec tion The power code is a type to get on and off Attach...

Страница 31: ...of the slit Do not cover the slit or put heat generator near the slit This may cause incorrect movement and damage because of the system heat 2 Rubber boots These support the system and prevent the sl...

Страница 32: ...holes under the cover This ear is for attaching fixing screws to standard rack such as EIA or JIS specifications 2 Screw holes of rack fixing ear This is for attaching fixing screws to standard rack s...

Страница 33: ...5 10 ECL 210 Operation Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 34: ...4 The unit is provided with a three pin cord To ensure the safe operation of the instrument please make sure that this is connected to a grounded power outlet 6 2 Installation To ensure the safe opera...

Страница 35: ...d the mains power turned off at the outlet Also please note that if the unit is moved from a cool location to a warm location there is a possiblity that condensation may form on the inside of the inst...

Страница 36: ...properly the equipment generates heat and it may not operate stably It also causes the same when the blank cover is not inserted in the empty slot When there is an empty slot please be sure to fix a b...

Страница 37: ...6 4 ECL 210 Operation Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 38: ...nnector 7 3 4 Optical Fiber Connection 7 4 Selecting Units in MLS 7 5 MLS MODE 7 6 MLS Matrix LED 7 7 Shuttle Switch 7 8 Driving LD and Shutting LD OFF 7 8 1 Driving LD 7 8 2 Shutting LD Off 7 9 Setti...

Страница 39: ...ess and Delimiters 7 14 1 Cautions 7 14 2 Changing Address 7 14 3 Changing Delimiter 7 15 Parameter Memory of Each Unit 7 16 Plug and Play 7 16 1 Unit Insertion 7 16 2 Pulling Unit Out 7 17 Shutting P...

Страница 40: ...wer in from the external is into MLS When the external power is supplied the system is in the state of waiting After MLS starting up MLS recognizes each unit and supplies and shuts down power to each...

Страница 41: ...RS 232C Delimiters MLS RS 232C delimiters can be changed by pushing CHANNEL MODE keys in power on In the state of power waiting turn power on with keeping pushing the either or both buttons so that RS...

Страница 42: ...switch s angle Shuttle mode OFF Parameter changes at regular interval Shuttle mode can be selected by pressing SHIFT or ON OFF key when the power is turned on Press and hold the key for two seconds S...

Страница 43: ...ON the following actions Sequence are carried out until the system is activated 1 Initialize optical systems and control circuits 2 If the self checking is okay LEDs are lit 3 Cancel the LD protection...

Страница 44: ...by the protection circuit In the state of LD OFF the protection circuit works and the current is not injected Similarly the optical power is displayed ap proximately 40 00dBm The minimum display value...

Страница 45: ...end face of the connector In addi tion we recommend that the socket on each ECL 210 unit is also periodically cleaned The cleaning procedure is explained in Section 10 3 If dirt is present on either...

Страница 46: ...er selected at present enables to shift the slot number inserted to right direction When the very right slot selected it goes back to the very left slot number The condi tion becomes waiting for param...

Страница 47: ...key LD Current mA Current ON OFF APC OpticalPower dBm APC ACC Switching COH OpticalPower dBm COH ON OFF CURR Current mA N A Non Applicable TEMP LD Temperature C N A POWER Optical Power dBm N A WAVE Wa...

Страница 48: ...turns right and left a little The display shows the set value for nearly 1 second when it turns back to the center from that condi tion The shuttle switch can change by 6 steps from the center to righ...

Страница 49: ...rrent control mode In the APC mode the optical output power can be set and the injection cur rent information is fed back so that the optical power is kept at the set value In the ACC mode control is...

Страница 50: ...r from the set current value and the LD driving method APC ACC MSL 8100 MULTI LIGHT SOURCE CONTROL SYSTEM STORE LOCAL REMOTE SIF SHIFT ON OFF mA nm mW C dBm LD ON APC ON COH ON STATUS 1 LD APC COH CUR...

Страница 51: ...wing procedure 1 Select the target unit to shut LD off on MLS Refer 9 4 Selecting a unit in MLS 2 Set the MODE LD using MODE key 3 Press ON OFF key 4 The current goes down gradually and the driving ci...

Страница 52: ...S Refer 7 4 Selecting a unit in MLS 2 Set MODE to change to WAVE using MODE key 3 Set wavelength using the shuttle switch Refer 7 7 Shuttle switch 4 OBPF and FLF is controlled to the set wavelength 5...

Страница 53: ...The FLF control takes time and the overshoot and undershoot may be repeated In that case wait a little nearly 1 minute to be stable adequately though it seems wave length to be stable The present valu...

Страница 54: ...ptical output power Optical output cannot be set in ACC mode Be sure that the mode is in APC If ACC change the mode to APC If the LED is not lit in the LD ON line of the Matrix LD to operate the mode...

Страница 55: ...s in MLS 2 Use MODE key to set the MDOE either APC COH or POWER 3 Use the shuttle switch to set optical output power Refer 7 7 Shuttle switch 4 MLS controls the set optical output power If the system...

Страница 56: ...quired by external criteria For ex ample when LF modulation is required it causes signal deformation with APC function Also when the power is required to fit some criteria not optical output power thi...

Страница 57: ...in MLS 2 Use MODE key to set the MODE CURR 3 Use the shuttle switch to set current Refer 7 7 Shuttle switch 4 MLS controls the set current MSL 8100 MULTI LIGHT SOURCE CONTROL SYSTEM STORE LOCAL REMOT...

Страница 58: ...This high precision control of FLF enables excellent wavelength accuracy stability and repeatability The control circuits in ECL precisely controls OBPF and FLF and it is easy to operate to set wavele...

Страница 59: ...n NOTE NOTE 7 12 Coherence Control If the LED is lit in the COH ON line of the Matrix LD to operate the state is ON If it is not lit the state is OFF 7 12 1 Coherence Control ON 1 Select the unit to o...

Страница 60: ...the unit to operate on MLS Refer 7 4 Selecting Units in MLS 2 Use MODE key to set the MODE COH 3 Press ON OFF key and the LED on the COH ON line is lit off LD ON APC ON COH ON STATUS 1 LD APC COH CURR...

Страница 61: ...lation the current driver to drive LD is controlled by external input voltage signals The current driver to drive the LD is given current limitation by hardware limit circuit and thereby is protected...

Страница 62: ...tled Just after changing the previous address and delimiter are still maintained Executing the IFC command of GP IB can reset those to GP IB driver 7 14 2 Changing Address 1 Press the shift key and SH...

Страница 63: ...LD ON APC ON COH ON STATUS 1 LD APC COH CURR TEMP POWER WAVE FINE CHANNEL MODE 2 3 4 5 6 7 8 6 Press LOCAL key again 7 The current delimiter is displayed on the parameter indicator 8 Press LOCAL key...

Страница 64: ...t Refer SHIFT LED 2 Press LOCAL key in SHIFT condition 3 The ordinary mode is changed to change mode 4 The current address is displayed on the parameter indicator 5 Press LOCAL key again SHIFT MSL 810...

Страница 65: ...SYSTEM STORE LOCAL REMOTE SIF SHIFT ON OFF mA nm mW C dBm LD ON APC ON COH ON STATUS 1 LD APC COH CURR TEMP POWER WAVE FINE CHANNEL MODE 2 3 4 5 6 7 8 6 The current delimiter is displayed on the param...

Страница 66: ...nit to operate on MLS Refer 7 4 Selecting Units in MLS 2 Press STORE key 3 The STORE command is sent to the unit selected by MLS Memorized parameters are injection current set value for LD temperature...

Страница 67: ...Insertion Here shows the procedure of inserting a unit 1 Insert unit along the guide of MLS slot 2 Insert the unit to the bottom and firmly fix the unit fixing screw on the left top of unit by rotatin...

Страница 68: ...it out after shutting LD down It may cause LD damage Here shows the procedure of pulling a unit out 1 Select the unit to pull out on MLS Refer 9 4 Selecting Units in MLS 2 Press the shift key and SHIF...

Страница 69: ...the unit fixing screw on the left top of unit by rotating and pull out the unit with holding the screw 8 When MLS confirmed the unit pulled put it comes back to the ordinary condition It is possible t...

Страница 70: ...its are off Otherwise LD maybe damaged Make sure that the LD drive LEDs of all ECL units are off then turn the power key 90degrees to the left to turn off the power To shut off the power completely fr...

Страница 71: ...7 34 ECL 210 Operation Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 72: ...d To exit the Address Setting Mode without changing the address press the Local key twice in succession To change the GPIB Address type in the required value using the number keypad The address is sav...

Страница 73: ...to the receive terminal of the external device e g computer The RRDX receive terminal of the ECL 210 should be connected to the transmit terminal of the external device Please ensure that the handsha...

Страница 74: ...DTR GND DCD Ring Indicate 1 2 3 4 5 Signal Ground Data Set Ready Request To Send Clear To Send Data Carrier Detect Receive Data Transit Data Data Terminal Ready D sub 25 pin connector No 25 9 RRDX 8 D...

Страница 75: ...A and B the MLS 8100 has eight slots indicated by the letters A to H To read data from the ECL 210 it is first necessary to set the output parameter to the required data parameter When subsequent rea...

Страница 76: ...re C TL xx xxx Sets output variable to indicate target LD temperature C TLT Sets output variable to indicate actual fine tuning setting FI Sets target value for target fine tuning setting FI xxx xx Se...

Страница 77: ...f 1 Coherence control is on 5 nd digit 0 Normal operation 4 rd digit 0 APC mode is active 1 ACC mode is active 3 th digit 0 Temperature of LD and optics is stable normal operation 1 Temperature of LD...

Страница 78: ...cl210a Check for device presence error checking gpib_dl Chr 13 Chr 10 Set Cr Lf as delimitter Set Wavelength Subroutine Comment ans InputBox Required Wavelength nm Ask user for required wavelength val...

Страница 79: ...l210 Open and initialise device Call ibln ecl210 1 0 ecl210a Check for device presence error checking gpib_dl Chr 13 Chr 10 Set Cr Lf as delimitter Read Actual Power Comment Call ibwrt ecl210 A OP gpi...

Страница 80: ...Routine Subroutine description Private Sub Wavelength_Set Sets routine name to Wavelength_Set Define Variables Comment Dim ans As String 30 Dimensions ans array as string of length 30 Dim ActualPower...

Страница 81: ...MSComm1 Input Read data from MSComm1 port MsgBox Actual Power ActualPower_dBm Output read data to screen Form1 MSComm1 PortOpen False Close communication port Read Target Power Subroutine Comment For...

Страница 82: ...r dirt into the unit and do not operate the unit within such an environment Do not apply a voltage exceeding that indicated in the specifications 10 1 Care 10 2 Maintenance Occasional cleaning of the...

Страница 83: ...it 3 Carefully clean the surface of the protruding optical connector using a soft lint free cloth moistened with alcohol Do not press unnecessarily on the end of the connector as this will cause it to...

Страница 84: ...the instrument and open the cover of the fuse housing using a small screwdriver Note the direction of the arrows on the end of each fuse holder The fuse holders can then be removed by pulling from th...

Страница 85: ...Housing Cover Inspection and calibration The warranty for ECL 210 is one year We recommend to have ECL 210 inspected and calibrated regularly 1 year For inspection or calibration please contact our s...

Страница 86: ...LD The bias current is injected into the LD from the current driver through the coil Before inputting the signal turn on power to the unit and turn on LD key 13 1 3 Procedure When using high frequency...

Страница 87: ...gn The unit is programmable enabling up to 128 combinations of wavelength and power settings to be stored and wavelegnth sweeps to be performed The CP 10 unit connects to the ECL 210 unit through the...

Страница 88: ...n 1 Insert a blank cover along with the guide of the slot insertion part of MLS 2 Insert it firmly to the back and fix it witht the fixed screw at the upper left of the unit Uninstallation 1 Loosen an...

Страница 89: ...e aware of dropping it when attaching it to the rack 11 4 2 MLS 2100 11 4 2 1 Rack mount angle A B 1 Remove a cover from where the rack mount angle will be fixed 2 Fix the rack mount angle with screws...

Страница 90: ...URCE ECL 210 11 5 11 5 RS 232C Cable RS 232C is available for ECL This is a cable to connect RS 232C TTL serial communication connector and PC Artisan Technology Group Quality Instrumentation Guarante...

Страница 91: ...11 6 ECL 210 OPERATION MANUAL Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 92: ...tion will not work if the Front Panel lockout command has been issued via GPIB Unit is initializing after ECL 210 unit has been inserted in slot Wait for initializing procedure to complete GPIB addres...

Страница 93: ...12 2 ECL 210 Operation Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 94: ...er this warranty VOID Santec will not be responsible for the product when the seals have been broken or damaged This warranty is effective only for the original purchaser of this product and is NOT tr...

Страница 95: ...13 2 ECL 210 Operation Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 96: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

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