See following pages for complete specifications and operating conditions.
For more information on this and other products:
Contact Sales at Ortel 626-293-3400, or visit www.emcore.com.
Model 2651A/2651E Broadband Photodiode
PRELIMINARY DATA SHEET| DECEMBER 30, 2005
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
Operating Temperature Range
Storage Temperature Range
Input Power Saturation
Reverse Voltage
Forward Current
Symbol
T
op
T
stg
P
IN
V
R
I
F
Min
-40
-40
-
-
-
Max
85
85
10
30
10
Unit
°
C
°
C
mW
V
mA
DC/Optical Characteristics
Parameter
Wavelength
Responsivity
Dark Current
Capacitance
Optical Return Loss
Bias Voltage
Fiber Buffer
Fiber Core / Cladding
-
-
-
Condition
-
1310 nm
1550 nm
25°C
85°C
-
Min
1100
0.85
0.95
-
-
-
-
10
-
-
Typ
-
-
-
-
-
0.35
-
12
900
9/125
Max
1600
-
-
5
50
0.4
-40
15
-
-
Unit
nm
A/W
nA
pF
dB
V
µm
µm
RF Characteristics
Parameter
Frequency Range
1
Condition
2651A
2651E
1
1
Min
-
-
-
2
-
-
-
-
Typ
-
-
-
-
-
-
-
-
Max
1000
3000
1
4
-75
-65
-85
-75
Unit
MHz
dB
dB
dBc
dBc
Frequency Response
Frequency Response
DSO
DTB
1,3
2651A/E, peak-to-valley, < 1 GHz
2651E up-tilt gain
2
2651A/E, 1310 nm, two tone test
4
2651E, 1310 nm, two tone test
2651A/E, 1310 nm, two tone test
4
2651E, 1310 nm, two tone test
Characterized with resistive load of 75Ω.
1 GHz to 3 GHz.
1,3
1.
2.
3.
4.
Each test laser has 40% OMI. Distortion products are measured at 81, 449, 600, 850. Optical P
in
= 0 dBm. V
pd
= 12V.
Additional test frequencies of 1500, 2000, and 2500 MHz.
ORTEL, A division of EMCORE
2
Model 2651A/2651E Broadband Photodiode
PRELIMINARY DATA SHEET| DECEMBER 30, 2005
Outline Drawing
Dimensions are in mm.
Pinout
Pin
1
2
3
Description
Anode
Cathode
Ground
Block Diagram
.
ORTEL, A division of EMCORE
.
.
Ground
Anode
Cathode
3
Model 2651A/2651E Broadband Photodiode
PRELIMINARY DATA SHEET| DECEMBER 30, 2005
Fiber Length
115 + 15 cm
60 + 2 cm
Conn
Mounting Bracket
Dimensions are in mm
.
With Bracket
Without Bracket
ORTEL, A division of EMCORE
4
Model 2651A/2651E Broadband Photodiode
PRELIMINARY DATA SHEET| DECEMBER 30, 2005
Ordering Information – Model Number Options
2651A-045-115-N
Model version
2651A
2651E
Optical connector
FC/APC, 020
FC/UPC, 023
SC/APC, 045
SC/UPC, 040
Fiber length
60 cm, 060
115 cm, 115
Mounting bracket
Yes, B
No, N
Information contained herein is deemed to be reliable and accurate as of issue date. EMCORE reserves the right to change the design or specifications of
the product at any time without notice. Ortel, the Ortel logo, EMCORE, and the EMCORE logo are trademarks of EMCORE Corporation.
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