communications components key features ? extremely low temperature dependence high accuracy periodic locking covers all channels (one part number for any channel to reduce inventory) temperature sensor included for better locking accuracy if necessary operation over c and l bands the broadband (fabry-perot) wavelength lo cker is a thermally stable, air-gapped etalon-based device. it can be used to stabilize laser sources for high-density wdm applications and tunable lasers. 50 ghz and 100 ghz fsr designs are the standard products available. these two fsr models are available with offsets of 25 ghz and 50 ghz, respectively, in order to support interleaved architectures. all fsr and itu offset variations come in the same industry standard package. the broadband wavelength locker has a wide capture range and excellent wavelength accuracy. the temperature sensor, included with every locker, can be used to calibrate out thermal effects when even higher wavelength accuracy is required or when using a very narrow fsr locker. applications ? precise laser locking for dwdm transmitter wavelength monitoring laser stabilization for tunable laser module dwdm channel frequency and optical power monitoring compliance telcordia 1221 broadband (fabry-perot) wavelength locker north america : 800 498-jdsu (5378) website : www.jdsu.com worldwide : +800 5378-jdsu
2 wavelength locker, broadband theoretical frequency response: 50 ghz -10.000 -8.000 -6.000 -4.000 -2.000 0.000 2.000 38.5 39.0 39.5 40.0 40.5 etalon photodiode (db) reference photodiode (db) - - - - - itu channel (ghz) diode photocurrent (db) theoretical frequency response: 100 ghz -14.000 -12.000 -10.000 -8.000 -6.000 -4.000 -2.000 0.000 2.000 38.5 39.0 39.5 40.0 40.5 etalon photodiode (db) reference photodiode (db) - - - - - - - itu channel (ghz) diode photocurrent (db)
3 wavelength locker, broadband pinout pin description 1 monitor pd1 anode (+) 2 etalon pd2 anode (+) 3 pd1, pd2 cathode (-) 4 temperature sensor supply voltage 5 temperature sensor monitor 6 temperature sensor ground dimensions diagram (specifications in mm unless otherwise noted.) 40.0 mm 15.0 mm 21.0 mm 8.5 mm pin 1 pin 6 18.0 mm minimum 34.0 mm ? = 0.45 mm 5.0 mm 5.0 mm 8.5 mm 10.0 mm 2.54 mm x 5 2.54 mm 18.0 mm optical schematic splitter etalon input fiber monitor out etalon out pd1 pd2
4 wavelength locker, broadband specifications parameter 50 ghz free spectral range 100 ghz free spectral range wavelength range 1520 to 1620 nm 1520 to 1620 nm center wavelength itu grid (standard) or as specified center channel accuracy over temperature, maximum 2.5 ghz 2 polarization, and eol 1 polarization dependent channel accuracy maximum 0.8 ghz (included in total center channel accuracy) acquisition range (capture range) typical -30 to 12 ghz -65 to 25 ghz from nominal itu center frequency locking slope at itu point typical 80 db/nm 55 db/nm optical operation power range (p in ) typical -25 to 7 dbm ~ input to module optical return loss 3 minimum 50 db optical input power for damage minimum 10 mw (cw) photodetector calibration offset maximum 2.5 db photocurrent responsivity of reference (pd1) 0.16 to 0.32 a/w 0.08 to 0.16 a/w responsivity of etalon (pd2) 0.16 to 0.40 a/w 0.08 to 0.28 a/w photodetector dark current typical 0.3 na at 5 v r , 25 c maximum 0.5 na at 5 v r , 25 c temperature sensor supply voltage at 130 a 5 to 30 v temperature sensor monitor typical 10 mv/c package dimensions (w x h x d) 40 x 8.5 x 21 mm electrical pin spacing (center to center) 2.54 mm fiber type smf-28 operating temperature 0 to 70 c storage temperature -40 to 85 c humidity (non-condensing) 0 to 85% rh note: data for temperature sensor reported at three temperatures at one wavelength (itu 40). all three temperatures (0, 23 and 70 c) are 3c. 1. calibrated at channel of use. 2. approaching 1.25 ghz with temperature sensor. 3. connected with a 5% tap coupler.
north america : 800 498-jdsu (5378) website : www.jdsu.com worldwide : +800 5378-jdsu smf-28 is a registered trademark of corning incorporated. st is a registered trademark of lucent technologies. telcordia is a registered trademark of telcordia technologies incorporated. all statements, technical information and recommendations related to the products herein are based upon information believed to be reliable or accurate. however, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any inaccuracies. the user assumes all risks and liability whatsoever in connection with the use of a product or its application. jdsu reserves the right to change at any time without notice the design, specificat ions, function, fit or form of its products described herein, i nclud- ing withdrawal at any time of a product offered for sale herein. jdsu makes no representations that the products herein are free from any intellectual property claims of others . please contact jdsu for more information. jdsu and the jdsu logo are trademarks of jds uniphase corporation. other trademarks ar e the property of their respective holders. ?2006 jds uniphase corporation. all rights reserved. 10114013 rev. 003 03/06 wvl.ds.cc.ae ordering information for more information on this or other products and their availability, please contact your local jdsu account manager or jdsu directly at 1-800-498-jdsu (5378) in north america and +800-5378-jdsu worldwide or via e-mail at customer.service@jdsu.com. wavelength locker, broadband sample: wvl-2b1010410 code channel alignment 10 100 ghz o n itu grid 20 100 ghz wi t h 50 ghz off set t o itu grid 50 50 ghz o n itu grid 60 50 ghz wi t h 25 ghz off set t o itu grid wvl-2b10 code fiber type 1 250 m fib e r ( s mf-28) 2 4 900 m t igh t buff e r ( s mf-28) code fiber length 11 m ete r 3 code connector 1 0no c o nnect or 2fc/ s pc 3 fc/apc 4 s c/ s pc 5 s c/apc 1. insertion loss and return loss change depend on connector type. 2. not available with connector. 3. tolerance +10 cm, -0 cm
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