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Newport 500B Series User Manual Download Page 58

 

Principals of Operation 

57

c.

 

Connect the USB interface to a computer when remote operation is 
necessary 

d.

 

Turn the unit on and allow it to warm up. 

e.

 

Select RANGE of operation. 

f.

 

Set the LIMIT set point using the front panel control knob. 

g.

 

Connect the laser diode and photodiode. 

h.

 

 Adjust the PD BIAS voltage to the photodiode. 

i.

 

Select either CURRENT or POWER mode. 

j.

 

Select SETPOINT display mode and set output current or monitor 
photodiode (optical power) level using the front panel control knob. 

k.

 

Enable KEYSWITCH, push OUTPUT on Switch, then toggle front 
panel display to the appropriate readout. 

NOTE 

Newport Corporation is not in any way responsible for any damage to any device 
used in conjunction with the Model 500B Series products.

 

 

Summary of Contents for 500B Series

Page 1: ...uy your excess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing R...

Page 2: ...Laser Diode Drivers User s Manual Model 500B Series...

Page 3: ...ear mark affixed 2003 Type of Equipment Electrical equipment for measurement control and laboratory use Standards Applied Compliance was demonstrated to the following standards to the extent applicabl...

Page 4: ...roducts which have been repaired or modified without Newport s written approval or products subjected to unusual physical thermal or electrical stress improper installation misuse abuse accident or ne...

Page 5: ...yee that does not need consistent with Customer s right of use hereunder to obtain access to the Newport Programs and Related Materials These restrictions shall not apply to information 1 generally kn...

Page 6: ...ber RMA Return the product to Newport Corporation freight prepaid clearly marked with the RMA and we will either repair or replace it at our discretion Newport is not responsible for damage occurring...

Page 7: ...vi Preface This page is intentionally left blank...

Page 8: ...ge symbol 12 1 1 6 On 12 1 1 7 Off 13 1 1 8 Fuses 13 1 1 9 Frame or Chassis 13 1 2 Warnings and Cautions 14 1 2 1 General Warnings 14 1 2 2 General Cautions 15 1 2 3 Summary of Warnings and Cautions 1...

Page 9: ...4 2 4 Photodiode BNC Input 31 4 2 5 Output Connector 31 4 2 6 Output Connections 31 4 2 7 Chassis GND 31 4 2 8 AC Power Inlet 31 4 2 9 Frame or Chassis Terminal 32 4 2 10 Power Inlet Socket 32 5 Comp...

Page 10: ...nding the Laser Diode 56 7 5 Model 500B Series Setup 56 7 5 1 Using the Interlock Feature 56 7 5 2 Rack Mounting Model 500B Series Units 56 7 5 3 Model 500B Series Operation Checklist 56 8 Maintenance...

Page 11: ...el Layout 501B shown 27 Figure 12 Rear Panel 30 Figure 13 Application front panel TEC Tab 47 Figure 14 Application front panel when communicating LDD Tab 48 Figure 15 Laser Diode Protection Circuit 52...

Page 12: ...nates an area where personal injury or damage to the equipment is possible 1 1 2 Electric Shock Figure 2 Electrical Shock Symbol The Electrical Shock Symbol in the figure above appears throughout this...

Page 13: ...ces and Radiological Health CDRH develops and implements national programs to protect the public health in the fields of radiation emitting electronic products 1 1 5 Alternating voltage symbol Figure...

Page 14: ...represents a Power Off condition 1 1 8 Fuses Figure 7 Fuse Symbol The fuse symbol in the figure above identifies the fuse location on the Model 500B Series Laser Diode Drivers 1 1 9 Frame or Chassis...

Page 15: ...it and in the operating instructions Do not use this equipment in or near water This equipment is grounded through the grounding conductor of the power cord Route power cords and other cables so they...

Page 16: ...re applying power Do not block ventilation openings Use only the specified replacement parts Follow precautions for static sensitive devices when handling this equipment This product should only be p...

Page 17: ...sk of electric shock or damage to the instrument turn the power switch off and disconnect the power cord before replacing a fuse WARNING Before cleaning the enclosure of the Model 500B Series Laser Di...

Page 18: ...General Information 17 1 3 Location of Warnings 1 3 1 Rear Panel Figure 10 Locations of warnings on the rear panel Frame or Chassis Terminal Electrical Hazard MAX Power Series 501B shown Fuse info...

Page 19: ...roduct or on its packaging indicated that this product must not be disposed of with regular waste Instead it is the user responsibility to dispose of waste equipment according to the local laws The se...

Page 20: ...and designed into every 500B Series Laser Diode Driver complying with CE and CDRH standards Refer to Section 1 Safety Precautions for more details Redundant FET and relay shorting circuits protect the...

Page 21: ...nsfer Function mA V 5 10 20 50 100 250 300 600 Bandwidth kHz External Modulation Bandwidth Hi BW DC to 1000 1 DC to 600 DC to 660 DC to 500 DC to 400 DC to 200 DC to 300 DC to 100 External Modulation...

Page 22: ...idity non condensing Altitude 3000 meters 10000 feet Installation Category II Pollution Degree 2 Use Location Indoor use only Laser Safety Features Output On Off keyswitch interlock output delay meets...

Page 23: ...22 General Information This page is intentionally left blank...

Page 24: ...or external signs of damage or mishandling Inspect the contents for damage If there is visible damage to the instrument upon receipt inform the shipping company and Newport Corporation immediately WAR...

Page 25: ...eries Laser Diode Drivers may be placed on any reasonably firm table or bench during operation The front legs of the unit can be pulled out to tilt the unit at an angle if desired 3 6 Electrical Requi...

Page 26: ...e rear panel input power connector which provides in line transient protection and RF filtering The input power connector contains the fuses and the switch to select series or parallel connection of t...

Page 27: ...26 Getting Started This page is intentionally left blank...

Page 28: ...shown 4 1 1 AC Power Switch When AC power is turned on the unit starts up in a default configuration with the OUTPUT off and the display in the SETPOINT mode The power switch is located in the lower l...

Page 29: ...ic range and frequency response of a laser diode In the P mode the output current to the laser diode is controlled in response to the monitor photodiode current to maintain a constant output optical p...

Page 30: ...LED array It reads current in mA for all Series 500B models Pushing the switch repeatedly cycles through display values as described below Display modes can be toggled when the output is either ON or...

Page 31: ...itch and the AC power inlet Figure 13 Rear Panel 4 2 1 USB Interface The instrument is designed to communicate with standard USB interfaces The cable required is a USB A B connection cable 4 2 2 PD Bi...

Page 32: ...0 to 5VDC scale 4 2 5 Output Connector Connections to the laser diode and photodiode are made with a 9 pin D sub connector 4 2 6 Output Connections The pin connections to the laser diode and monitor p...

Page 33: ...C for operation at 108 132VAC 60Hz 220VAC for operation at 198 242VAC 50Hz 240VAC for operation at 216 264VAC 50Hz The line cord supplied with each unit should be plugged only into a properly grounded...

Page 34: ...desired action and queries that return a stored value or state of the instrument Queries must end with a question mark while commands may require parameter s to follow LASer LIMit I 50 00 For example...

Page 35: ...th semicolon separating 5 queries The controller responds to this command string with a response that has 5 values using a comma as a separator COMMAND STRING LAS OUT LAS SET I LAS I LAS SET MDI LAS M...

Page 36: ...ns instrument temperature in deg C KEYswitch Key switch query Returns key switch ON OFF status Commands specific to Laser Diode Drivers Command Syntax Command Description Remarks LASer LDI I Laser cur...

Page 37: ...se the instrument to return an identification string NEWPORT XXXX vYYY mm dd yy SNZZZZ RCL Description Recall command Syntax RCL value Argument Value Description Value 0 Restores Factory Default setti...

Page 38: ...allows the programmer to read the Status Byte Register Response Description Status Byte Register bit 0 Reserved bit 1 Reserved bit 2 Reserved bit 3 Reserved bit 4 Message Available bit 5 Reserved bit...

Page 39: ...if no errors See Also ERRSTR Error Messages 0 NO ERROR No errors exist in the output buffer 099 FIRMWARE NOT VALID The previous firmware update was not completed successfully Update the firmware again...

Page 40: ...been turned OFF because a range change was commanded using LAS RANGE command 514 MODE CHANGE The output has been turned OFF because a mode change was commanded using either LAS MODE I or LAS MODE MDI...

Page 41: ...of the hardware temperature measurement Response Description measured temp Measured temperature in C This measurement is updated approximately once every 225 milliseconds LASer LDI I Description Lase...

Page 42: ...scription Laser photodiode current set point command Syntax LASer MDI photodiode current Remarks The LASer MDI command sets the value of the photodiode current set point in mA Argument Description pho...

Page 43: ...laser channel s measured forward voltage Response Description measured voltage Laser diode forward voltage in volts LASer LIMit LDI I Description Laser current limit set command Syntax LASer LIMit LD...

Page 44: ...nd selects the laser constant current mode If this command is issued when the output is ON output is turned OFF and the mode is set to constant current mode See Also LASer MODE LASer MODE MDI IPD Desc...

Page 45: ...nals See Also LASer OUTput LASer OUTput Description Laser enable output query Syntax LASer OUTput Remarks The LASer OUTput query returns the status of the laser output Response Value Description enabl...

Page 46: ...ing 45 LASer RANGE Description Range query Syntax LASer RANGE range Remarks The LASer RANGE query returns an integer that indicates the present range Response Value Description Status 0 Low 1 High See...

Page 47: ...46 Computer Interfacing This page is intentionally left blank...

Page 48: ...tware application that communicates with the 300B 500B using the USB port The installation installs the USB drivers that are required to use USB communication The design of the software is to allow th...

Page 49: ...tabs one for the 300B TEC specific functions and one for the 500B LDD functions The individual TEC and LDD specific tabs have two columns labeled on the top as CONTROLS and READBACK 6 3 1 LDD Tab CON...

Page 50: ...isplays the Temperature or Resistance ITE Displays the TEC Current The Laser TEC Output Current Level display on the bottom is a visual indicator of the current read back with the upper limit for that...

Page 51: ...50 Software Application This page is intentionally left blank...

Page 52: ...ive to electrostatic discharge since they can only withstand a maximum reverse voltage of 2 to 3V across their leads and no more than the maximum rated current in the forward direction NOTE Always fol...

Page 53: ...es with and without monitor photodiodes The following sections will show how to make connections to standard 9mm and 5 6mm packaged laser diodes and also telecommunication laser diodes in Dual In Line...

Page 54: ...ations as shown in Figure 17 Figure 18 shows how to connect a Model 500B Laser Diode Driver to three of the various laser diode and photodiode configurations NOTE The optional chassis ground earth gro...

Page 55: ...D pin 3 from the laser diode driver output connector is used to make this connection which is connected internally to the chassis directly Make sure that this is the only earth ground connection to th...

Page 56: ...55 telecommunication laser package are shown in Figure 19 Care must be taken when connecting the chassis ground earth ground to the package Figure 19 Telecommunication laser diode packages and connect...

Page 57: ...losed again pushing the front panel OUTPUT switch will resume current flow after an approximately 4 second soft start sequence The switch or relay contact should be electrically isolated from all othe...

Page 58: ...photodiode h Adjust the PD BIAS voltage to the photodiode i Select either CURRENT or POWER mode j Select SETPOINT display mode and set output current or monitor photodiode optical power level using th...

Page 59: ...58 Principals Of Operation This page is intentionally left blank...

Page 60: ...aning WARNING Before cleaning the enclosure of the Model 500B Series Laser Diode Drivers the AC power cord must be disconnected from the wall socket The source enclosure should only be cleaned with a...

Page 61: ...for service 8 3 Obtaining Service The Model 500B Series Laser Diode Driver contains no user serviceable parts To obtain information regarding factory service contact Newport Corporation or your Newpo...

Page 62: ...tain RA prior to return of item Address ________________________________ ____________________Date _________________ Country _______________________ Phone Number ______________________________________...

Page 63: ...Visit Newport Online at www newport com Newport Corporation Worldwide Headquarters 1791 Deere Avenue Irvine CA 92606 In U S 800 222 6440 Tel 949 863 3144 Fax 949 253 1680 Internet sales newport com...

Page 64: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...

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