PD-Photodiode Module
DESCRIPTION
The PD series module incorporates a highly linear photodiode
sensitive to the wavelength range 1550 ± 20nm. This module is a
hermetically sealed coaxial package with a single mode fiber
pigtail.
FEATURES
• High linearity, low capacitance photodiode
• Low back reflection in package
• Wide RF bandwidth up to 3 GHz
• Wide operating temperature range
• RoHS compliant
APPLICATIONS
• CATV node receivers
• Forward and return path
• Analog/digital QAM
• Higher channel satellite signal
transmission
• FTTC/FTTH, PON networks
MODEL OPTIONS
PD - S : S = SC/APC
PD - F : F = FC/APC
MECHANICAL SPECIFICATIONS
with Optional Mounting Bracket
(mm unless otherwise noticed, orientation of leads in bracket arbitrary)
• Fiber is SMF-28, flame retardant Hytrel coating, 0.9 mm diameter, 1 m long
• Customized length and mounting bracket are available upon request.
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PD- Photodiode Module
PD Current (CW, T=25
0
C)
0
0.5
1
1.5
2
2.5
3
3.5
4
012345
Input Optic al Power (mW)
PhotoCurrent (mA) .
PD Response
0.70
0.75
0.80
0.85
0.90
0.95
1.00
-20-100 102030405060 708090
Temperature (
0
C)
Responsivity (A/W) .
ELECTRO-OPTICAL CHARACTERISTICS
PARAMETERS SYMBOL MIN. TYP. MAX. UNIT
Operating temperature T
op
-40 - 85
o
C
Optical wavelength range λ
op
1530 1550 1570
nm
Responsivity r -
0.9 @ 1550nm
-
A/W
Bandwidth BW - - 3 GHz
RF Flatness
FR≤1
FR≤3
-0.5
-1.5
-
0.5
1.5
GHz
Dark current I
D
- - 1 nA
Optical Return Loss ORL - -45 - dB
2
nd
Order Intermodulation IMD2 - -75
3
rd
Order Intermodulation IMD3
Note(1)
- -85
dB
Capacitance C - - 0.6 pF
(1)
2-tone measurement at 1550 nm, OMI=40%, 0 dBm received power, measured at 450 MHz, 600 MHz, 850 MHz,
and 1 GHz
MAXIMUM RATINGS
PARAMETERS SYMBOL MIN. TYP. MAX. UNIT
Storage Temperature T -40 - 85
o
C
Input power saturation Po - - 10 mW
Reverse voltage V
R
- - 35 V
Forward current I
F
- - 10 mA
TYPICAL ELECTRO-OPTICAL CHARACTERISTICS
IMD2 vs Bias
( T = 25
0
C, P
in
= 0 dBm )
-80
-75
-70
-65
-60
-55
-50
02468101214
Reverse Bias V oltage (V )
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