MEMS ATTENUATOR / ON-OFF SWITCH
DiCon’s Attenuator/On-Off Switch is based on a micro-electromechanical system (MEMS) chip. The MEMS chip consists of anelectrically movable mirror on a silicon support. A voltage applied
to the MEMS chip causes the mirror to rotate, which changes thecoupling of light between the input and output fibers of Attenuator/On-Off Switch.

FEATURES
Small attenuator packagen Based on DiCon’s proven MEMS platformn Available in opaque or transparent versionsn Qualified to GR-1221
n Combines Variable Optical Attenuator and On-Off SwitchnAPPLICATIONS
Attenuator/On-Off Switches are used as safety shutters during lasertransmitter power up as well as for channel equalization once thelaser has stabilized. In its highest loss position, the Attenuator/
On-Off Switch provides greater than 45 dB of power isolation.
Used as an Attenuator, it allows the output power of the laser tobe continuously adjusted over a 40 dB range. Attenuator/On-Off
Switches are ideally suited for use within line cards or transponders.

Specifications subject to change. Copyright © 2010 DiCon Fiberoptics, Inc. All rights reserved.

RATING

Excess Loss

0.8 dB max

Off State Isolation

45 dB minWDL

PDL59MSA C

PARAMETER

0 to 15 dB2Broad Band
Application

O RD ERI N G I N FO R M ATI O N

1Housing TypeC
Cylindrical
Attenuator Type
T
Transparent1
OOpaque 2
Operating Wavelength Range
131290 - 1330 nm
151528 - 1563 nm
161570 - 1610 nm

0.4 dB max.

15 to 20 dB 3 0.7 dB max.

Narrow Band
Application4

0 to 20 dB 3

0 to 15 dB

0.15 dB max.

15 to 20 dB

0.2 dB max.

0.2 dB max.

Attenuator Range2020 dB min.
XSpecify X dB min. (X <= 40)
Ripple TypeS
Slow ripple (broad band)
F
Fast ripple (narrow band)

Attenuation Slope

20 dB/V max.

Polarization Mode Dispersion

0.05 ps max.

Back Reflection-50 dB max.

Optical Power500 mW max.

Response Time

2 ms max.

Repeatability6

0.1 dB max.

Durability

1 x 10 9 cycles min.

Fiber Type

9/125 single mode fiber

Operating Temperature-5°C to +70°C

Storage Temperature-40°C to +85°C

Fiber Type99/125 μm SinglemodeJacket Type2B
250 μm barefiber
9L
900 μm loosetube
Connector TypeFC
FC/SPCFC/APC FC/APC
X
specify connector type 3NNone

1. All Specifications at room temperature, without connectors
2. Operation from 1290 - 1330nm adds 0.4dB
3. Operation from 1290 - 1330nm adds 0.3dB
4. Maximum change of each 2 nm segment within the operating range
5. Operation from 1290 - 1330nm adds 0.1dB
6. Repeatability is defined after 100 cycles

Pigtail Length1
1 meter
X
Specify X meters
Pin Bending
S
Straight Pins
B
Bent Pins

ELEC TRI CAL SPECI FI CATI O NSPARAMETERRATING

Actuation typeNon-latching

DC Drive Voltage

0-5 VDC (7 V for opaque)

Voltage Damage Threshold

10 VDC max.

Resistance

2 MΩ min.

Power Consumption

20 uWatt max.

1. Minimum insertion loss at 0 V.
2. Minimum insertion loss at 6 - 7 V (high isolation at 0 V).
3. Connector Types: FC/UPC, SC, SC/APC, SC/UPC, LC, LC/UPC, MU/UPC.

M ECHAN I CAL D I M ENSI O NS
Straight Pins

O PTI CAL PERFO R M AN CEOpaque
010102020

Attenuation (dB)

Attenuation (dB)

Transparent
030405060012345Control Voltage (V)67Bent Pins

3040506001234567Control Voltage (V)MEMS ATTENUATOR / ON-OFF SWITCHO PTI CAL SPECI FI CATI O NS

SPECIFICATIONS /ORDERING INFORMATIONMEMS ATTENUATOR / ON-OFF SWITCH

DiCon Fiberoptics, Inc. 1689 Regatta Blvd. Richmond, CA 94804 Tel. (510) 620-5000 Fax. (510) 620-4100 www.diconfiberoptics.com

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