Attenuators MEMS Attenuator DiCon's MEMS Attenuator is based on a micro-electro-mechanical system (MEMS) chip. The MEMS chip consists of an electrically movable mirror on a silicon support. A voltage applied to the MEMS chip causes the mirror to rotate, which changes the coupling of light between the input and output fibers of the MEMS Attenuator. Cylindrical Package Features * * * * Small attenuator package Qualified to GR-1221 Available in opaque or transparent versions Available in both cylindrical and 14-pin DIP packages Applications MEMS Attenuators are used for distributed power equalization within OADMs, MUX/DMUXes, Band Equalizers, Channel Equalizers, Optical Cross-Connects, Line Cards and Transponders. MEMS Attenuators can also be used for input power adjustment in erbium-doped fiber amplifiers. U.S. patented. Specifications subject to change. Copyright (c)2004 DiCon Fiberoptics, Inc. All rights reserved. Ordering Information Optical Specifications1,2 Excess loss MT - 0.8 dB max. Broad band Application Flatness Narrow band Application 3 0 to 15 dB 0.4 dB max. 15 to 20 dB 0.7 dB max. Housing Type 0 to 20 dB 0.2 dB max. C D - - - - - 9 - Cylindrical 14-Pin DIP Attenuator Type Transparent 1 Opaque 2 T O 0 to 15 dB Polarization dependent loss 15 to 20 dB 0.15 dB max. Attenuation slope 20 dB/V max. Polarization mode dispersion 0.05 ps max. Back-reflection -50 dB max. Optical power 500 mW max. Response time 2 ms max. Repeatability 0.1 dB max. Wear-out 1 x 10 cycles min. S F Fiber type 9/125 single mode fiber Jacket Type Operating temperature -50C to +700C 2B 9L Storage temperature -400C to +850C Connector Type 0.2 dB max. Operating Wavelength Range 13 15 16 1280 - 1330 nm 1528 - 1563 nm 1570 - 1610 nm - - MEMS Attenuator Attenuators Attenuator Range 20 X 20 dB min. Specify X dB min. (X <= 40) Ripple Type 9 Slow ripple (broad band) Fast ripple (narrow band) 250 barefiber 900 loosetube FC FC/APC X N 1. All specifications referenced without connectors. 2. At room temperature. 3. Maximum change of each 2 nm segment within the operating range. FC/SPC FC/APC specify connector type 3 None Pigtail Length 1 X Electrical Specifications 1. Minimum insertion loss at 0 V. 2. Minimum insertion loss at 6.5 V (high isolation at 0 V). 3. Connector Types: FC/UPC, SC, SC/APC, SC/UPC, LC, LC/UPC, MU/UPC Non-latching DC drive voltage 0 - 5 VDC (6.5 V for opaque) Voltage damage threshold 10 VDC max. Resistance Power consumption 2 M min. Housing Dimensions Cylindrical Package 3.00 27.5 20 uWatt max. 13.5 1.0 O2.5 O5.56 MEMS-VOA Optical Performance 2 (CNTL) 3 (GND) O5.56 14-pin DIP Package Transparent o5.50 Opaque 0 0 10 10 20.83 9.50 12.70 Attenuation (dB) Attenuation (dB) 7.50 20 30 40 50 0 1 2 3 4 5 Control Voltage (V) 6 7 4.07 4.84 20 UNITS: mm 7.62 Attenuators Actuation type 1 meter Specify X meters o.45 2.54 30 14 13 12 11 10 9 8 40 50 Top View 0 1 2 3 4 5 Control Voltage (V) 6 7 DiCon Fiberoptics, Inc. 1689 Regatta Blvd. Richmond, CA 94804 1 Tel. (510)620-5000 2 3 4 5 6 7 Fax. (510)620-4100 Pin Assignment 1 GND 8 NC 2 CNTL 9 NC 3 NC 10 NC 4 NC 11 CASE GND 5 NC 12 NC 6 NC 13 NC 7 NC 14 NC www.diconfiber.com 0047I