Tunable Laser Modulator TLM Series ±0.7 Chirp Version

Transcription

1 COMMUNICATIONS COMPONENTS Tunable Laser Modulator TLM Series ±0.7 Chirp Version Key Features Integrated full band Tunable 10 Gb/s transmitter engine Available in C or L band Zero or fixed 0.7 chirp modulation >4 dbm optical output power (modulated) Includes wavelocker and power monitor photodiode Low power consumption Eliminates PM fusion splicing Simplifies logistics Applications 10 Gb/s dense wavelength division multiplexing (DWDM) transmission SONET/SDH transmission Long reach and long haul transmission 10 GbE transport JDSU's Tunable Laser Modulator (TLM) combines a widely tunable source laser, 10 Gb/s lithium niobate modulator, wavelength locker, and output powermonitoring photodiode into a single, integrated transmitter engine package. The TLM takes advantage of highly reliable technologies, including distributed feedback (DFB) lasers and lithium niobate modulators. Both technologies have excellent track records for performance and reliability, and have been widely deployed in the majority of optical transport networks. The TLM's wavelength tunability and modulator performance enable highquality optical transmission, while its novel integration technology reduces the cost of optical transmission components. The laser can be tuned over the full C or L band. The wavelength locker is calibrated for 50 GHz use and the modulator is capable of handling data rates up to 12.5 Gb/s to accommodate forward error correction (FEC) schemes. This makes it an ideal product for both long reach and long haul transmission. The TLM's versatility allows it to fit both on transmission line cards and in 10 Gb/s MSA transponders. NORTH AMERICA: JDSU (5378) WORLDWIDE: JDSU WEBSITE:

2 2 Dimensions Diagram (Specifications in inches [mm] unless otherwise noted.) Pinout Pin Description Pin Description Pin Description 1 LS CLK 11 VREF 21 WL PD + 2 LS DAT 12 QUAD + UL 22 NC 3 MEMS X- 13 QUAD + LL 23 NC 4 LS 3.3V 14 Laser TEC (-) 24 RF GPO limited detent 5 Laser cathode 15 Laser TEC (+) 25 Case GND 6 MEMS Y+ 16 WL TEC (-) 26 Modulator DC bias 7 Laser thermistor 17 WL TEC (+) 27 N/C 8 LS GND 18 WL thermistor 28 PD monitor (-) 9 QUAD + LR 19 MEMS X + 29 PD monitor (+) 10 QUAD +UR 20 MEMS Y -

3 3 S21 Characteristics of the TLM Modulated Spectra 1 S21 (db) Sample S21 data Fit Frequency (GHz) Absolute Maximum/Minimum Ratings Parameter Minimum Maximum Storage temperature -40 C 85 C Laser injection current ma Laser reverse bias V MEMs X voltage - ±225 V MEMs Y voltage - ±180 V RF power (RF port) - 27 dbm DC voltage (bias port) -20 V 20 V DC voltage (RF port) 0 V 0 V Monitor PD reverse bias voltage 0 V 25 V Monitor PD current (reverse voltage) - 10 ma Operating Conditions Parameter Minimum Maximum Operating frequency THz THz Case temperature -5 C 75 C Bit rate Gb/s Photodiode reverse bias voltage 0 V 10 V Power consumption W 1. Worst-case steady state power consumption at a case temperature of 70 C.

4 4 Specifications Parameter Test Condition Minimum Maximum Tunable Laser Modulated output power 1 At BOL and maximum laser forward current 4 dbm - Frequency range THz THz Laser set temperature EOL 23 C 63 C Case temperature -5 C 75 C Laser forward current At BOL and modulated output power 100 ma 220 ma Laser forward voltage At BOL and modulated output power V Laser threshold current - 80 ma Spectral width - 5 MHz Side mode suppression ratio 40 db - Relative intensity noise 20 MHz to 10 GHz db/hz -1/2 Optical isolation 30 db - MEMs X voltage -205 V 205 V MEMs Y voltage -175 V 175 V Laser TEC current Peak value during tuning, transient duration <15 s A Laser TEC voltage Peak value during tuning, transient duration <15 s V Laser thermistor 25 C case temperature 9.5 kω 10.5 kω Wavelength Locker Frequency error 2 EOL -2.5 GHz 2.5 GHz Locker TEC current 3 Peak value during tuning, transient duration <15 s A Locker TEC voltage V Locker thermistor 25 C case temperature kω Modulator Modulator chirp parameter α±0.7 by design α-0.1 α+0.1 Optical return loss Output port 30 db - Optical on/off extinction ratio Low frequency 22 db - Optical on/off extinction ratio 4 PRBS 14 db - Rise/fall time 4 10 to 90% - 40 ps E/O bandwidth (-3 db electrical) Linear fit 2 to15 GHz 10 GHz - S MHz to 10 GHz db Drive voltage RF port 5 PRBS V Vπ RF port At 2 GHz, 1550 nm, T=300K V Vπ bias port At 40 khz 2 V 4 V Bias voltage range 6-15 V 15 V RF port resistance DC 65 Ω 75 Ω Bias port resistance DC 100 kω - Monitor Photodiode Extinction ratio 7 6 db - O/E bandwidth 100 khz - Responsivity Referenced to output power 10 ma/w 50 ma/w Responsivity variation db 0.5 db Phase tracking error Dark current Measured at -5 V and room temperature - 10 na 1. Measured at modulator quadrature with laser drive current less than or equal to the maximum value at BOL. 2. Frequency error is EOL over wavelength range and operating case temperature range. 3. Steady state. 4. For PRBS signals of up to and bit rates up to 12.5 Gb/s. Measurement is based on an optimized test set-up. 5. Maximum drive voltage required to achieve 15 db ER for 12.5 Gb/s PRBS signal over the operating wavelength and temperature ranges. 6. Maximum voltage range required to maintain optimum bias over life and temperature. 7. ER=10*log (Imax/Imin): Imax=PD current with modulator biased to maximum output power, Imin=PD current with modulator biased to minimum output power. 8. The responsivity variation is over the wavelength range and the operating case temperature range. 9. Phase tracking error is the difference in phase between the modulator output power transfer function and the monitor photodiode output current transfer function.

5 5 Ordering Information For more information on this or other products and their availability, please contact your local JDSU account manager or JDSU directly at JDSU (5378) in North America and JDSU worldwide or via at Sample: Product Code Description α chirped TLM 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, specifications, function, fit or form of its products described herein, including 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 are the property of their respective holders JDS Uniphase Corporation. All rights reserved Rev /05 TLM.DS.CC.AE NORTH AMERICA: JDSU (5378) WORLDWIDE: JDSU WEBSITE: