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| Data Sheet May 2001 10 Gbits/s Lithium Niobate Electro-Optic Modulator Features s s s s s s Ti-diffusion process Single-drive technology C- and L-band models Slim, hermetic package Bandwidths up to 10 GHz Operational over a temperature range of 0 C to 70 C 43 design for minimal electrical reflections Angled interfaces for minimal optical reflections Integrated optical attenuator available on 10 Gbits/s modulator (2623CSA) Tested to Telcordia Technologies * 468 s s s The Lithium Niobate Modulators include three single-drive modulators (2623N, 2623Y, 2623CS) and a single-drive modulator with an integrated attenuator (2623CSA). All devices are capable of modulation rates up to 10 Gbits/s. s Benefits s s s Excellent long-term bias stability Internal polarizer Low modulation voltages Applications s Digital high-speed telecommunications: -- SONET: OC-1 through OC-192 -- SDH: STM-16, STM-64 -- Undersea communications Internet data communications SONET/SDH test equipment s s * Telcordia Technologies is a trademark of Telcordia Technologies, Inc. 10 Gbits/s Lithium Niobate Electro-Optic Modulator Data Sheet May 2001 Description The 10 Gbits/s Electro-Optic Modulator is designed for long-wavelength, single-mode external amplitude modulation applications. It uses an integrated MachZehnder configuration to convert single polarization CW light from a semiconductor (DFB) laser into a timevarying optical output signal. Agere Systems Inc. also offers a 10 mW CW laser with polarization-maintaining fiber (D2525P) to use as a source for the modulator. The Ti-diffusion process is a standard feature on all modulator devices. The 2623N, 2623Y, and 2623CS are single-drive, 10 Gbits/s modulators; the 2623CSA is a single-drive, 10 Gbits/s modulator with an attenuating section. Variable attenuation to >19 dB is achieved through a dc bias voltage. The package is hermetic to protect the LiNbO3 die from the environment. Novel processing techniques now make it possible to achieve 20-year operation with little drift in the dc bias point. The modulator is tested to, and meets the intent of TR-NWT-00468. Other standard features include PANDA-type polarization-maintaining fiber (PMF) for the optical input (all codes) and output (2623N, 2623Y, and 2623C) fiber with FC-type connectors that are keyed to the axis of polarization. Custom designs are available. 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 @ 1.5 m RF Voltage (peak to peak) dc Voltage (RF input) dc Voltage (Attenuator input) Operating Temperature Symbol Tstg PIN VRF VdcRF VdcATT TOP Min -40 -- -- Max 85 30 10 20 25 70 Unit C mW V V V C -20 -25 0 2 Agere Systems Inc. Data Sheet May 2001 10 Gbits/s Lithium Niobate Electro-Optic Modulator Optical/Electrical Characteristics Table 1. Optical/Electrical Characteristics Parameter Operating Wavelength: C-band L-band Insertion Loss: 2623N, 2623Y, 2623CS 2623CSA Extinction Ratio @ dc Extinction Ratio @ RF S11 Optical Return Loss Bandwidth* Drive Voltage (V) @ dc Drive Voltage (V) @ 1 GHz Attenuation Voltage @ -19 dB Electrode Impedance S11 Electrical Return Loss (0.13 GHz--5 GHz) S11 Electrical Return Loss (5 GHz--10 GHz) S11 Electrical Return Loss (10 GHz--18 GHz) Min 1525 1565 3 3.5 20 -- -- 8 2.8 3.5 15 -- -- - -- Typ -- -- 3.7 4.5 27 13 -- 10 3.1 4.1 19 43 -15 -14 -8 Max 1565 1620 5.5 6.5 -- -- -35 -- 4.0 5.0 22 -- -13 -12 -6 Unit nm nm dB dB dB dB dB GHz V V V dB dB dB * Bandwidth stated is electrical-optical-electrical as determined by the ratio of the received RF electrical power (at a photodiode) relative to the RF electrical power used to drive the modulator. This response is referenced to the value at 130 MHz. dc BIAS CONTROLLER SEE NOTE. PHOTODETECTOR/ PREAMP HIGHSPEED DATA INPUT MODULATOR DRIVER BIAS TEE dc ATTENUATION CONTROLLER PMF CW-LASER 2623N, 2623Y, 2623CS, 2623CSA SPLITTER Note: Circuitry in dotted lines is used only with the 2623CSA. 1-1062 (F) Figure 1. Recommended Operating Circuit Diagram 43 0.2 F 2623N, 2623Y, 2623CS 43 0.2 F -10 pF 2623CSA Figure 2. Equivalent Circuit Diagram Agere Systems Inc. 1-1063 (F) 3 10 Gbits/s Lithium Niobate Electro-Optic Modulator Data Sheet May 2001 Optical/Electrical Characteristics (continued) Electrical Signal Input Electrical signal input is made through SMA coaxial connectors. The standard device includes an internal termination network. Care must be taken not to exceed the recommended 8 in./lb. of torque when making connections to these inputs. High-frequency coaxial cable is recommended. Characteristic Curves CH1 E/O W/A dBe COR 1 AVG 4 SMA 2 HID 3 4 LOG MAG dB/ REF -55.48 dB 1: -55.846 dB 3 1. 130 000 000 GHz 2. -55.476 dB 0.9248 GHz 3. -58.476 dB 9.9690 GHz 4. -61.766 dB 18.76 48 GHz 0 OPTICAL POWER OUT (dB) -10 POWER (3dB/div) -20 -30 -40 -50 START .130 000 000 GHz STOP 20.000 000 000 GHz FREQUENCY 1-1058(F) -20 -10 0 10 20 1-1060(F) MODULATOR dc BIAS VOLTAGE (V) Figure 3. Magnitude of Electro-Optic Response, 0.130 GHz--20 GHz. . CH1 S11 LOG MAG 5 dB/ REF 0 dB 1: -18.896 dB 1. 924 000 000 GHz 2. -15.278 dB 3.7006 GHz 3. -16.27 dB 5.0975 GHz 4. -8.7734 dB 14.7344 GHz Figure 5. Output Power vs. Bias Voltage 0 -10 OPTICAL POWER (dB) dBe COR POWER (3 dB/div) -20 HID 4 1 2 3 -30 -40 -50 -60 START .130 000 000 GHz STOP 20.000 000 000 GHz FREQUENCY 1-1059(F) -40 -30 -20 -10 0 10 20 30 40 1-898 (C) ATTENUATOR BIAS VOLTAGE (V) START = -23.98 V STOP = 25.58 V 1-1061(F) Figure 4. S11, 0.130 GHz--20 GHz Figure 6. Optical Power vs. Attenuator Bias Voltage 4 Agere Systems Inc. Data Sheet May 2001 10 Gbits/s Lithium Niobate Electro-Optic Modulator Outline Diagrams Dimensions are in inches and (millimeters). 2623N, 2623Y, 2623CS Lithium Niobate Modulators SMA SHORTING CAP FIELD-REPLACEABLE SMA CONNECTOR INPUT A06686 98 1.20 (30.5) 0.20 (5.1) Agere Electro-Optic Modulator Model S/N 2623N XXXX 0.14 (3.6) BEND LIMITER 2 PLACES FC/PC CONNECTOR OPTIONAL 2 PLACES 4.64 (117.9) 1.5 METER MAXIMUM LOOSE-TUBE JACKETED FIBER 2 PLACES 014097001 0.60 (15.2) 2623N S/N XXXX A0668698 0.39 (9.8) 0.20 (5.11) 0.32 (8.1) 4.00 (101.6) 2.00 (50.8) #4-40 UNC 2B 0.12 (3.05) DEEP MIN, 6 PLACES 0.09 (2.2) 0.43 (10.8) 1.53 (38.9) 1-1064(F)a Agere Systems Inc.. 5 10 Gbits/s Lithium Niobate Electro-Optic Modulator Data Sheet May 2001 Outline Diagrams (continued) 2623CSA Lithium Niobate Modulator ATTENUATOR PIN # 1 SMA SHORTING CAP FIELD-REPLACEABLE SMA CONNECTOR INPUT A06686 98 ATTENUATOR PIN # 2 1.20 (30.5) 0.20 (5.1) Agere Electro-Optic Modulator Model S/N 2623CSA XXXX 0.14 (3.6) BEND LIMITER 2 PLACES FC/PC CONNECTOR OPTIONAL 2 PLACES 4.64 (117.9) 1.5 METER MAXIMUM LOOSE-TUBE JACKETED FIBER 2 PLACES 014097001 0.60 (15.2) 2623CSA S/N XXXX A0668698 0.39 (9.8) 0.20 (5.11) 0.32 (8.1) 4.00 (101.6) 2.00 (50.8) #4-40 UNC 2B 0.12 (3.05) DEEP MIN, 6 PLACES 0.09 (2.2) 0.43 (10.8) 1.53 (38.9) ATTENTION ELECTROSTATIC SENSITIVE DEVICES 1-1064F.c 6 Agere Systems Inc. Data Sheet May 2001 10 Gbits/s Lithium Niobate Electro-Optic Modulator 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. To prevent warping, use only the two center screws to mount the device. Table 2. Package Information Description Input Optical Fiber (all codes) Output Optical Fiber: 2623N, 2623Y, 2623CS 2623CSA Fiber Connector Fiber Length RF Connector Package Dimensions Type PANDA-type PMF PANDA-type PMF Standard Single-mode FC 1.5 m max SMA See Outline Drawings, page 5, 6. Ordering Information Table 3. Device Information Part Number Minimum Bandwidth (GHz) 8 9 10 8 Attenuator C-Band L-Band Comcode 2623N 2623Y 2623CS 2623CSA No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes 1077393100 108864604 107862823 108433954 Agere Systems Inc.. 7 10 Gbits/s Lithium Niobate Electro-Optic Modulator Data Sheet May 2001 For additional information, contact your Agere Systems Account Manager or the following: http://www.agere.com INTERNET: docmaster@micro.lucent.com E-MAIL: N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA PACIFIC: Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256 Tel. (65) 778 8833, FAX (65) 777 7495 CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 200121 PRC Tel. (86) 21 50471212, FAX (86) 21 50472266 JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700 EUROPE: Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148 Technical Inquiries:OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK) Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liab ility is assumed as a result of their use or application. Copyright (c) 2001 Agere Systems Inc. All Rights Reserved May 2001 DS00-331OPTO-2 (Replaces DS00-331OPTO-1) |
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