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DiCon’s PM 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.
Features
•Small attenuator package
•High extinction ratio
•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. Polarization Maintaining
Attenuators can also be used for power adjustment in polarization
sensitive devices such as modulators.
U.S. patented. Specifications subject to change. Copyright ©2004 DiCon Fiberoptics, Inc. All rights reserved.
PM MEMS Attenuator
Attenuators
Cylindrical Package
Attenuators
Excess loss 0.8 dB max.
Back-reflection -50 dB max.
Wear-out 1 x 10 cycles min.
Response time 2 ms max.
Repeatability 0.1 dB max.
Fiber type Panda 400 or equivalent
Optical power 500 mW max.
Operating temperature -50C to +700C
Storage temperature -400C to +850C
1. All specifications referenced without connectors.
3. Maximum change of each 2 nm segment within the operating range.
18 dB min.
Extinction ratio
9
2. At room temperature.
Attenuation slope 20 dB/V max.
Flatness
Broad band
Application
Narrow band
Application 3
15 to 20 dB 0.7 dB max.
0 to 15 dB 0.4 dB max.
0 to 20 dB 0.2 dB max.
DiCon Fiberoptics, Inc. 1689 Regatta Blvd. Richmond, CA 94804 Tel. (510)620-5000 Fax. (510)620-4100 www.diconfiber.com
PM MEMS AttenuatorAttenuators
0121B
Optical Specifications1,2
Housing Dimensions
Ordering Information
1
3
.
5
Ø
5
.
56
3
.
00
27.
5
MEM
S
-V
O
A
2
(
CNTL
)
GND
1.
0
Ø
2.
5
Ø
5
.
56
DC drive voltage
20 uWatt max.
Actuation type Non-latching
Voltage damage threshold
Resistance
Power consumption
2 MΩ min.
10 VDC max.
0 - 5 VDC (6.5 V for opaque)
Electrical Specifications
MT -
Operating Wavelength Range
15 1528 - 1563 nm
16 1570 - 1610 nm
Connector Type
FC FC/SPC
FC/APC FC/APC
X specify connector type
N None
Attenuator Range
20 20 dB min.
X Specify X dB min. (X <= 40)
Ripple Type
S
1
Slow ripple (broad band)
F Fast ripple (narrow band)
Pigtail Length
1 meter
XSpecify X meters
Attenuator Type
T Transparent
O Opaque 2
1
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
Housing Type
C Cylindrical
D 14-Pin DIP
---- - - -
4B
13 1280 - 1330 nm
Connector Key Orientation
PMF
PMS Slow axis
-
3
PMN No connector
Fast axis
2
0
.
83
4.
07
9
.
50
7.
50
ø
5
.
50
1
2.7
0
2.
54
ø
.
4
5
4.
8
47.
62
Cylindrical Package
14-pin DIP Package
Control Voltage (V)
Attenuation (dB)
Transparent
01 2
34567
0
10
20
30
40
50
Control Voltage (V)
Attenuation (dB)
Opaque
01 2
34567
0
10
20
30
40
50
Optical Performance
Units: mm
1
G
N
D
2
C
NT
L
3
N
C
4 N
C
5
N
C
6
N
C
7 N
C
8 NC
9 NC
10 NC
11 CASE GND
12 NC
13 NC
14 NC
Pin Assi
g
nmen
t
1
2
3
4
5
6
7
8
9
10
11
12
1
3
14
To
p
Vie
w