Advance Data Sheet
March 2001
CA16-Type 2.5 Gbits/s DWDM Transponder with
16-Channel 155 Mbits/s Multiplexer/Demultiplexer
Optical Characteristics
Minimum and maximum values specified over operating case temperature range at 50% duty cycle data signal.
Typical values are measured at room temperature unless otherwise noted.
Table 4. OC-48/STM-16 Transmitter Optical Characteristics (Tc = 0 °C to 65 °C)
Parameter
Symbol
Min
Typ
Max
Unit
1
Average Output Power:
Long Reach (1.55 µm DFB laser)
Po
λ
–2
0
3
dBm
nm
Operating Wavelength:
Long Reach (1.55 µm DFB laser);
All 48 100 GHz ITU Grid Channels Available
1528
–0.06
—
—
1563
0.06
Variation in Center Wavelength Over Operating
Temperature (EOL)
∆λ
nm
Spectral Width:
2
Long Reach (DFB laser)
∆λ20
SSR
re
—
30
—
—
—
1
nm
dB
dB
3
Side-mode Suppression Ratio (DFB laser)
—
—
4
Extinction Ratio
8.2
Optical Rise and Fall Time:
CA16A2-Type
tR, tF
—
—
—
—
140
130
ps
ps
CA16B2-Type
Dispersion Penalty:
CA16A2-Type
DP
—
—
—
—
2.0
2.0
dB
dB
CA16B2-Type
5, 6
Eye Mask of Optical Output
Compliant with GR-253 and ITU-T G.957
Compliant with GR-253 and ITU-T G.958
Jitter Generation
1. Output power definitions and measurements per ITU-T Recommendation G.957.
2. Full spectral width measured 20 dB down from the central wavelength peak under fully modulated conditions.
3. Ratio of the average output power in the dominant longitudinal mode to the power in the most significant side mode under fulyl modulated
conditions.
4. Ratio of logic 1 output power to logic 0 output power under fully modulated conditions.
5. GR-253-CORE, Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria.
6. ITU-T Recommendation G.957, Optical Interfaces for Equipment and Systems Relating to the Synchronous Digital Hierarchy.
Table 5. OC-48/STM-16 Receiver Optical Characteristics (Tc = 0 °C to 65 °C)
Parameter
Symbol
Min
Typ
Max
Unit
Average Receiver Sensitivity1:
APD Receiver
–29
–8
–34
–6
—
—
dBm
dBm
PRMIN
Maximum Optical Power:
APD Receiver (long reach)
PRMAX
Link Status Switching Threshold:
APD Decreasing Light Input
LSTD
—
—
3
TBD
—
—
100
2
dBm
µs
Link Status Response Time
Optical Path Penalty
—
—
—
—
dB
Receiver Reflectance
—
—
–27
dB
Jitter Tolerance and Jitter Transfer
Compliant with GR-253 and ITU-T G.958
1. At 1310 nm, 1 x 10–10 BER, 223 – 1 pseudorandom data input.
15
Agere Systems Inc.
AGERE [ AGERE SYSTEMS ]
