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15 

  

6

 

Specifications 

6.1

 

Table of Specifications 

Specification 

Performance 

Notes 

Wavelengths available 

1530nm 

1542nm 

1312nm 

1653nm 

Other wavelengths 

Standard for PFR, NLL-HP 

Standard for all options 

Standard for PFR 

Standard for PFR, methane sensing 

Inquire 

Lock wavelength modes  

Reference Lock 

Line Narrowing 

Locks to the center of the absorption line. 

Locks laser to the slope of the absorption line 

Wavelength Absolute Accuracy 

<

0.0001nm 

 

<±0.00002nm  

 

 

At 25

  5

C  after self calibration 

Typical 

The Clarity is a primary frequency standard  locked 
to a physical constant.  We rely on published 
wavelength data from HITRAN or NIST where 
available. 

Wavelength Reproducibility 

<

2 MHz 

<600Khz RMS 

Typical At 25

  5

C after self calibration 

Side mode suppression 

>35 dB 

Typical 

Laser Linewidth 

(Line Narrowing Lock) 

<30Khz 

<150KHz 

<1MHz 

<5MHz 

NLL 

NLL-HP 

PFR-HP 

PFR 

Laser Linewidth 

(Reference Lock) 

<200KHz 

<1MHz 

<1MHz 

<5MHz 

NLL 

NLL-HP 

PFR-HP 

PFR 

Output power 

5mW 

>30mW 

Typical 

HP versions 

Output power stability 

0.01dB 

Typical over 24 hour  ±5 ºC 

Fiber Type 

SMF 28e 

PM Panda 

Typical 

HP versions 

Fiber Interface 

SCAPC 

FCAPC Jumpers available 

External Interface 

RS232 

 

Operating temperature range 

0

C to +50

 

Power Requirements 

90-250VAC, 50/60Hz 

 

Fuse 

1.0 Amp time delay 

 

Summary of Contents for Clarity Series

Page 1: ...Molecular Absorption Line Operating Manual 0700 M Rev C Copyright Wavelength References 2012 All Rights Reserved Wavelength References 1800 SW 3rd Street 140 Corvallis OR 97333 Voice 541 738 0528 Fax...

Page 2: ...duct to Customer if the shipment is within the United States or Canada Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to other l...

Page 3: ...ed 7 4 1 1 Password 7 4 1 2 Initial Calibration 7 4 1 3 Interlock 7 4 2 Front Panel Operation 7 4 2 1 Menu 7 4 2 2 LOCK MODE 9 4 2 3 CAL 9 4 2 4 ACTIVE 9 4 3 Front panel display 9 4 3 1 Frequency and...

Page 4: ...lication for the Clarity laser is to provide an extremely accurate and stable wavelength standard in the DWDM band This can be used as a calibration source for an OSA optical spectrum analyzer or to v...

Page 5: ...wavelength while still being referenced to an unchanging molecular energy level This allows for wavelengths to be offered that are exactly on an ITU DWDM grid location Note only available on some gri...

Page 6: ...difficulties Another possibility investigated was frequency doubling 1500 1560nm light to probe atomic transition in the 750 780nm area This approach requires complicated and expensive apparatus Mole...

Page 7: ...ant temperature There is essentially no long term drift due to the gas line reference The tube construction uses a low melting temperature glass that results in a true hermetic seal The line center lo...

Page 8: ...Take care to clean all fiber connections to the laser well before making connection This will help keep the internal ferrule clean and undamaged If the internal ferrule is dirty you can attempt to cl...

Page 9: ...s the command 4 1 2 Initial Calibration Our high power 30mW lasers include a warm up cycle when first turned on After the laser is first turned and the ACTIVE button is pressed the front panel display...

Page 10: ...n press NEXT The front panel will display Laser Password and the laser will be off To re enable the laser press and hold either directional button to scroll to the correct password and then press NEXT...

Page 11: ...weeps the laser across a limited spectral range approx 150 GHz and identifies the position of the gas line s peak absorption This information is used in the instrument s locking routines Should you pr...

Page 12: ...t was opened then closed 2 the instrument s locking routine exceeded its dynamic range and had to re center to the absorption line This can occur if the instrument s temperature changes suddenly To cl...

Page 13: ...e used as a diagnostic or in gas sensing system experiments where the laser is scanning the line to provide an indication of the exact timing and scanning of the absorption feature 3 RS 232 The Clarit...

Page 14: ...e Boolean 0 1 off on Sets laser enabled disabled state SOURce STATe Queries laser enabled disabled state SOURce WAVElength xxxx xxxxxnm Queries target wavelength System Subsystem SYSTem ERRor NEXT Que...

Page 15: ...EEE 488 2 Requirements CLS Clear status command ESE numeric value Standard event status register ESE IDN Identification query OPC Operation complete enable OPC RST Reset command STB Read status byte q...

Page 16: ...cted 220 Parameter error No entry in list to retrieve number list or channel list 221 Settings conflict Check rear interlock Settings Conflict Check rear interlock 222 Data out of range Data out of ra...

Page 17: ...equency standard locked to a physical constant We rely on published wavelength data from HITRAN or NIST where available Wavelength Reproducibility 2 MHz 600Khz RMS Typical At 25 C 5 C after self calib...

Page 18: ...classification may be shipped by any customary means 8 Bibliography 1 F Nez F Biraben R Felder and Y Millerioux Opt Comm 102 432 438 1993 2 K Nakagawa M de Labachelerie Y Awaji and M Kourogi Accurate...

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