`
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.
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 ampli-
fiers.
U.S. patented. Specifications subject to change. Copyright ©2004 DiCon Fiberoptics, Inc. All rights reserved.
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 9/125 single mode fiber
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.
Polarization
dependent loss
0 to 15 dB
15 to 20 dB 0.2 dB max.
0.15 dB max.
0.05 ps max.
Polarization mode dispersion
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
MEMS AttenuatorAttenuators
0047I
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
---- - - -
9
13 1280 - 1330 nm
Jacket Type
2B 250 µ barefiber
9L 900 µ loosetube
-
3
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
UNITS: mm
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
1
GND
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
1
0
11
12
1
3
14
To
p
Vie
w