MAT-0TTC210

A GILE OPTICAL COMPONENTS MEMS Variable Optical Attenuators MATT Series Key Features • Low polarization dependence • Insensitive to vibration and electrostatic discharge (ESD) • Extremely low wavelength dependence over C and/or L bands • Mulitiple devices easily packaged into common housing • Available in both normally open and normally closed states • Available in three different packages Applications • Power equalization in multi-channel, optically amplified networks • Gain-tilt control in erbium doped fiber amplifiers (EDFAs) • Power control into narrowband wavelength division multiplexers (WDMs) and configurable networks • Photoreceiver trimming • Receiver protection/switch during transmitter turn-ons The JDSU Agile Optical Components family includes modulators, switches, attenuators and tunable filters. These products provide the basis for spectrally efficient DWDM transmission utilizing dispersion tolerant modulation, channel monitoring, wavelength switching, remote power control and dynamic channel selection. They support a wide range of flexible functionalities at lower operational expenses for the Agile Optical Network. In addition, we have a complete line of tunable lasers assemblies and sub-assemblies in our Agile Transmission Module family. JDSU microelectromechanical systems variable optical attenuators (MATT) focus on key network optical power management applications. JDSU offers MEMS attenuators in normally open and normally closed states. The MATT series attenuators fully comply with Telcordia 1221 reliability program. Key features include a small size, low wavelength dependent loss (WDL), and high reliability. JDSU provides three different package options: DIL MATT, TO MATT, and Micro MATT. The MEMS attenuator design achieves highly repeatable optical attenuation over C and/or L bands through a thermally-actuated reflective vane that intercepts light. Applied power/voltage actuates the vane and translates in and out of the light beam. In a closed loop mode with constantly applied electrical power/voltage, the MEMS attenuator achieves excellent performance over a wide temperature range and in a variety of environmental conditions. DIL MATTs include an internal temperature sensor which can be used to compensate the temperature dependent performance for accurate open loop operation. Compliance • Telcordia 1209 and 1221 • Passed monitored MIL-STD 883 (GR-1221) conditions vibration test (insensitive to 20 g peak acceleration) • Passed MIL-STD 883 (500 V) ESD test conditions NORTH AMERICA : 800 498-JDSU (5378) WORLDWIDE : +800 5378-JDSU WEBSITE : www.jdsu.com MEMS VARIABLE OPTICAL ATTENUATORS 2 Dimensions Diagram: DIL MATT (Specifications in mm unless otherwise noted.) Dimensions Diagram: TO MATT (Specifications in mm unless otherwise noted.) 38.3 21 10.9 13.2 1 CNTL 2 CNTL 3 GND 0.8 ?5.1 3X?0.45 ?9.1 ?3.9 ?8.4 MEMS VARIABLE OPTICAL ATTENUATORS 3 Dimensions Diagram: Micro MATT (Specifications in mm unless otherwise noted.) Typical attenuation and PDL profiles for the normally open VOA over -5 °C, 25 °C and 75 °C 30 Attenuation at 25°C 25 Attenuation at 75°C PDL at -5°C Attenuation at -5°C PDL at 25°C PDL at 75°C 0.15 0.2 Attenuation (dB) 20 15 0.1 10 0.05 5 0 0 20 40 60 80 100 120 0 140 Drive Power (mW) Typical attenuation and PDL profiles of the normally closed VOA MATT K2-578 Attenuation and PDL Versus Voltage 60 Attenuation PDL 0.6 50 0.5 Attenuation (dB) 40 0.4 30 0.3 20 0.2 10 0.1 0 0 0.5 1 1.5 2 2.5 3 3.5 4 0 Applied Voltage (V) PDL (dB) PDL (dB) MEMS VARIABLE OPTICAL ATTENUATORS 4 Typical insertion loss distribution data for normally open VOA 25.0 Frequency Percentage (%) 20.0 15.0 10.0 5.0 0.0 less than 0.25 to 0.25 0.3 0.3 to 0.35 0.35 to 0.4 0.4 to 0.45 0.45 to 0.5 0.5 to 0.55 0.55 to 0.6 0.6 to 0.65 0.65 to 0.7 0.7 to 0.75 0.75 to more 0.8 than 0.8 Insertion Loss Range (dB) Typical robustness of the design ⎯ ~0.15 dB attenuation change after 10 million cycle dynamic load test on the normally closed VOA Device Held at 75 °C. Legend is in thousands of cycles. 0.15 25 100 0.10 250 500 Change in Loss (dB) 1000 0.05 2000 3000 4000 0.00 5000 6000 -0.05 7000 8000 9000 -0.10 0 5 10 15 20 25 30 35 40 45 50 55 10000 Attenuation (dB) Typical averaged wavelength dependence variation across C and L bands at ~ 10 dB attenuation setting Wavelength Dependent Loss at 10 dB Attenuation -9.7 -9.8 Attenuation (dB) -9.9 -10.0 -10.1 -10.2 -10.3 1520 1540 1560 1580 1600 1620 1640 Wavelength (nm) MEMS VARIABLE OPTICAL ATTENUATORS 5 Specifications Parameter Recommended method of operation Operating wavelength range C band L band Attenuation range Insertion loss1 BOL EOL Tuning speed2 Optical power handling Wavelength dependence3 Flatness Ripple Polarization dependence loss1, 3 0 to 10 dB 10 to 20 dB 20 to 30 dB Temperature dependence of attenuation4 at IL at 10 dB at 20 dB at 30 dB Repeatability Return loss1 Drive voltage2 Device resistance Peak power consumption2 Fiber type Fiber marking Input port Output port Operating temperature Reliability qualification 1. Excluding connectors. 2. For full dynamic range. Normally Open Constant power 1525 to 1575 nm 1570 to 1610 nm 25 dB Maximum Maximum 0.8 dB (0.5 dB typical) 1.0 dB 20 ms 24 dBm 0.3 dB (0.2 dB typical) 0.15 dB (0.08 dB typical) 0.1 dB (0.06 dB typical) 0.2 dB (0.12 dB typical) ±0.3 dB (