EMCORE 2651A-040-066-B

2651A/2651E Broadband Photodiode
DATASHEET | FEBRUARY 2012
FIBER OPTICS
The 2651 provides the proven high performance of EMCORE’s photodiode
technology in a very practical, cost-effective package. The 2651A features high
linearity and low capacitance over a 1 GHz bandwidth. The extended bandwidth
2651E offers high linearity and low capacitance up to 3 GHz. These broadband
photodiodes are housed in a small, environmentally rugged coaxial package.
The 2651 broadband photodetector is designed to provide the performance and
flexibility needed to meet the expanding applications of two-way communications
networks. This photodiode is used today in forward-and return-path applications,
including AM-VSB CATV, QAM 64/256, PON, FTTC and FTTH receivers.
Applications
Forward-Path and Return-Path
Broadband Video Transport
FTTx Receivers
The 2651A and 2651E photodiodes are compliant with all criteria of the Restriction
of the Use of Hazardous Substances in Electrical and Electronic Equipment
(RoHS) guidelines 2002/95/EC
EDFA and Network Monitors
Performance Highlights
Features
Low Cost Package
Operating Case Temperature
Low Capacitance, < 0.4 pF
Min
Typ
Max
Units
-40
25
+85
C
1100
-
1600
nm
Low Dark Current < 50 nA at +85C
Wavelength
1 GHz Flat Response, + 0.5 dB
Responsivity, 1310 nm
-
0.90
-
1550 nm
-
0.98
-
Dark Current, 25C
-
-
5
85C
-
-
50
-
0.35
0.4
-
1000
-
3000
Extended Bandwidth Option
High Responsivity
- > 0.90 A/W at 1310 nm, typ.
- > 0.98 A/W at 1550 nm, typ.
RoHS Compliant
Capacitance
Bandwidth, 2651A
2651E
-
A/W
nA
pF
MHz
Gain Flatness, < 1 GHz
-
-
1.0
dBp-p
Gain Up-Tilt, 2651E, 1 GHz to 3 GHz
2
-
4
dB
DSO, 2651A/E, < 1 GHz
-
-
-75
-
-
-65
-
-
-85
-
-
-75
10
12
15
2651A/E, 1 GHz – 3 GHz
DTB, 2651A/E, < 1 GHz
2651E, 1 GHz – 3 GHz
Bias Voltage
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
dBc
dBc
V
2651A/2651E Broadband Photodiode
FIBER OPTICS
DATASHEET | FEBRUARY 2012
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress
ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the
operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect
device reliability.
Parameter
Symbol
Min
Max
Unit
Operating Temperature Range
Top
-40
85
°C
Storage Temperature Range
Tstg
-40
85
°C
Input Power Saturation
PIN
-
10
mW
Reverse Voltage
VR
-
30
V
Forward Current
IF
-
10
mA
DC/Optical Characteristics
Parameter
Condition
Min
Typ
Max
Unit
Wavelength
-
1100
-
1600
nm
Responsivity
1310 nm
1550 nm
0.85
0.95
0.90
0.98
-
A/W
Dark Current
25C
85C
-
-
5
50
nA
Capacitance
-
-
0.35
0.4
pF
-
-
-40
dB
Optical Return Loss
Bias Voltage
-
10
12
15
V
Fiber Buffer
-
-
900
-
m
Fiber Core / Cladding
-
-
9/125
-
m
Condition
Min
Typ
Max
Unit
-
-
1000
3000
MHz
RF Characteristic
Parameter
Frequency Range
2651A
2651E
1
1
2651A/E, peak-to-valley, < 1 GHz
1
2651E up-tilt gain
Frequency Response
Frequency Response
1,3
DSO
DTB
1,3
-
-
1
dB
2
-
4
dB
2651A/E, 1310 nm, two tone test
4
2651E, 1310 nm, two tone test
-
-
-75
-65
dBc
2651A/E, 1310 nm, two tone test
4
2651E, 1310 nm, two tone test
-
-
-85
-75
dBc
2
1. Characterized with resistive load of 75.
2. 1 GHz to 3 GHz.
3. Each test laser has 40% OMI. Distortion products are measured at 81, 449, 600, 850. Optical Pin = 0 dBm. Vpd = 12V.
4. Additional test frequencies of 1500, 2000, and 2500 MHz
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
2651A/2651E Broadband Photodiode
FIBER OPTICS
DATASHEET | FEBRUARY 2012
Outline Drawing (Dimensions are in mm)
Block Diagram and Pinout
.
.
.
Anode
Cathode
Ground
Pin Definitions
Pin
Description
1
2
3
Anode
Cathode
Ground
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
2651A/2651E Broadband Photodiode
FIBER OPTICS
DATASHEET | FEBRUARY 2012
Fiber Length
115 + 15 cm
60 + 2 cm
47 + 2 cm
38 + 2 cm
Conn
Plastic Mounting Bracket (Dimensions are in mm)
With Bracket
Without Bracket
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
2651A/2651E Broadband Photodiode
DATASHEET | FEBRUARY 2012
FIBER OPTICS
Metal Mounting Bracket (Dimensions are in mm)
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
2651A/2651E Broadband Photodiode
FIBER OPTICS
DATASHEET | FEBRUARY 2012
Ordering Information – Model Number Options
2651A-045-115-N
Model Version
2651A
2651E
Optical Connector
020 = FC/APC
023 = FC/UPC
045 = SC/APC 8O Angle Connector
046 = SC/APC 9 O Angle connector
040 = SC/UPC
0E2 = E2000
Fiber Length
038 = 38 cm
047 = 47cm
060 = 60 cm
066 = 66 cm
115 = 115 cm
100 = 100 cm
Mounting Bracket
N = No mounting bracket
B = Plastic mounting bracket
M = Metal mounting bracket
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.