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10
ORR24 Instruction Manual
Specifications
This section contains the specifications of the ORR24 Optical Reference
Receiver. All specifications are guaranteed unless noted as “typical.” Typical
specifications are provided for your convenience but are not guaranteed.
Specifications marked with the
n symbol have corresponding checks in the
Performance Verification section on page 12.
Table 1: ORR24 Specifications
Specification
Description
Effective wavelength range, typical
1000 nm to 1650 nm
n
DC conversion gain
≥
0.500 V / mW at 1310 nm
±
20 nm and 1550 nm
±
20 nm
DC conversion gain, typical
> 0.850 V / mW at 1310 nm
±
20 nm
Relative responsivity, typical
See Figure 4
DC conversion gain linearity, typical
< 3% deviation in DC conversion gain from 25
m
W to 500
m
W average optical input
relative to conversion gain with 250
m
W average optical power input
Absolute maximum nondestructive optical
input
5 mW average power; 10 mW peak power at wavelength with highest relative
responsivity
n
Bandwidth
DC to 2.0 GHz (
≥
– 6 dB electrical output into 50
W
)
Frequency Response
( +20
_
C to +35
_
C)
Scalar frequency response of optical-to-electrical conversion (as measured at the
electrical output) falls within the SONET OC-48 and SDH STM-16, 2.488 Gb/s industry
standards (Bessel-Thompson reference receiver boundary limits)
1
Maximum non-saturating linear response to
transient input
The transient optical signal response is linear (
±
5%) up to 100
m
W average optical
power and < 200
m
W
p-p
optical power for both 1310 nm
±
20 nm and 1550 nm
±
20 nm.
Linearity is relative to 200
m
W
p-p
step response
Internal Fiber diameter
core: 9
m
m single-mode fiber
cladding: 125
m
m
Fiber connector style
female FC/PC
Optical return loss
> 30 minimum when external mating fiber is also PC style.
n
Noise equivalent power
≤
15 pW
ń
Hz
Ǹ
electrical output noise when terminated into 50
W
n
Rise time
≤
205 ps
n
Aberrations
≤
5%
p-p
total
n
Output zero
≤
±
1.0 mV at 20
_
C to 30
_
C and
≤
±
3.0 mV outside this range (optical input must be
zero)
External Termination impedance
50
W
±
2
W
1
A 4th order Bessel Thompson response for a SONET/SDH 2.488 Gb/s data rate receiver should have a nominal –3 dB at
1.8666 GHz and –5.7 dB at 2.488 GHz.
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