a 8 e re AdLib OCR Evaluation systems Preliminary Data Sheet, Rev. 1 August 2002 40 Gbits/s Lithium Niobate Electro-Optic Modulator Applications . Digital high-speed telecommunications : - SONET OC-768 - Undersea communications . Internet data communications . SONET test equipment The Lithium Niobate 40 Gbits/s Modulator (2625C) is a higherspeed addition to the Agere Systems' family of modulators that also includes 10 Gbits/s and 20 Gbits/s versions . Features . Ti-diffusion process . Dual-drive technology . Thin-film, 50 0 termination in package for minimal reflections . Low modulation voltages . Tunable, zero chirp operation . Angled interfaces for minimal optical reflections . Hermetic package . Separate do bias electrode . Internal polarizer . Excellent long-term bias stability over a full operational temperature range of 0 C to 70 C Description Representing the latest advancements in high-speed lithium niobate technology, the 40 Gbits/s electrooptic modulator is designed for long-wavelength, single-mode, external amplitude modulation applications . It uses an integrated Mach-Zehnder configuration to convert single polarization CW light from a semiconductor (DFB) laser into a time-varying optical output signal . Using the source in the CW mode eliminates the need for demanding, high-speed performance from the laser and reduces its cost. The dual-drive design inherently offers the capability to adjust the phase of the voltages on the electrodes, which produces zero-chirp modulation operation . AdLib OCR Evaluation Preliminary Data Sheet, Rev. 1 August 2002 40 Gbits/s Lithium Niobate Electro-Optic Modulator Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device . These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter Storage Temperature Optical Input Power at 1 .5 gm Input Power to the RF Port* RF Voltage (peak to peak) do Voltage (dc input) Operating Temperature Symbol Tstg PIN PRF VRF Vdc Top Min -40 -20 0 Max 85 30 500 10 20 70 Unit C mW mW V V C " It is highly recommended not to put any do voltage on the RF port . Characteristics Table 1 . Optical/Electrical Characteristics (Tc = 25 C) Parameter Operating Wavelen gth Optical Insertion Loss Extinction Ratio at do Extinction Ratio at RF S11 Optical Return Loss Bandwidth Drive Voltage (VTc) at 1 GHz Electrode Impedance S11 Electrical Return Loss I Min 1525 20 12 30 - T 47 - I I Max 1620 6 -30 Unit nm dB dB dB dB 3 -10 GHz V/side 0 dB I 2625C Characteristic Curves 0 -36 -,-,- --.--.--.------------r-r-r-T- - - - - - - - - - - - - - - - - - - - - - - a) m z O n m w O w -39 - - -42 -45 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -mo"-10 - m z -15 O V -20 w J - - - - - - - - - - *-,-,-n--- .-- .------ .----~--~ -~ -~ - - - - - - - - - - - - - - - - - - - - - - - - - L-25 -4V 11 - 0 - - - - - - - - 10 - - - - - - - - - - - - - 20 FREQUENCY (GHz) - -30 - 30 40 1-1961 (F) Figure 1 . Magnitude of Electro-Optic Response 2 35 0 5 10 15 20 25 30 35 FREQUENCY (GHz) 40 1-1962 (F) Figure 2. S11 Electrical Return Loss Agere Systems Inc. AdLib OCR Evaluation Preliminary Data Sheet, Rev. 1 August 2002 40 Gbits/s Lithium Niobate Electro-Optic Modulator Outline Diagram Dimensions are in inches and (millimeters) . MODULATOR BIAS PINS - i INPUT 1 .400 MAX (35 .6) 1 10 AGERE SYSTEMS ELECTRO-OPTIC DEVICE L0 .250 MAX (6 .35) BEND LIMITER 2 PLACES V-CONNECTOR FC/PC CONNECTOR 2 PLACES 1.25 METER MIN LOOSE TUBE JACKETED FIBER 2 PLACES 4.640 (117 .86) o ~- o 0.087 (2.21) -1 2.00 (50.8) I 1 .187 L (30.15) Agere Systems Inc . k 0 .390 (9 .91) 0.300 (7 .62) 6X #4-40 UNC-213 0.150 (3 .81) DEEP MIN 2.00 (50.8) I IN T 0.425 (10.8) 0.200 (5 .08) XXXX)00(Xo 0.206 (5 .23) 0.320 (8 .13) 0.600 (15.24) 0.200 (5.08) 1.242 (31 .55) 1-1064 (F)g AdLib OCR Evaluation Preliminary Data Sheet, Rev. 1 40 Gbits/s Lithium Niobate Electro-Optic Modulator August 2002 Package Information Designed to NEBS (inside plant) standards, the hermetic package design incorporates a laser-sealed lid and soldered fibers. The minimum bend radius for the fiber is 1 .5 in. Table 2. Package Information Description Type Input Optical Fiber Output Optical Fiber Fiber Connectors Fiber Length RF Connector Package Dimensions I PANDA-type PMF PANDA-type PMF FC 1 .5 m max V-type See Outline Diagram, page 3 Ordering Information Table 3. Device Information Part Number 2625C Comcode 109036483 I For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http ://www.ageFe .com E-MAIL: docmaster@agere.com N. AMERICA: Agere Systems Inc ., Lehigh Valley Central Campus, Room 10A-301C, 1110 American Parkway NE, Allentown, PA 18109-9138 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA : Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tower 2, The Gateway, Harbour City, Kowloon Tel. (852) 3129-2000, FAX (852) 3129-2020 CHINA: (86) 21-5047-1212 (Shanghai), (86) 755-25881122 (Shenzhen) JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 6778-8833, TAIWAN : (886) 2-2725-5858 (Taipei) EUROPE: Tel. (44) 7000 624624, FAX (44) 1344 488 045 Agere Systems Inc . reserves the right to make changes to the product(s) or information contained herein without notice . No liability is assumed as a result of their use or application . Agere, Agere Systems, and the Agere logo are trademarks of Agere Systems Inc. Copyright (c) 2002 Agere Systems Inc . All Rights Reserved August 2002 DS02-351 OCN-1 (Replaces DS02-351 OCN) a 'ere s 8 y tems s