Juniper Networks T1600 Benutzerhandbuch

Table 25: Optical Interface Support for 10-Gigabit Ethernet PICs with XENPAK-OTNs (continued)

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Transmitter type: Electro-absorption Modulated Laser (EML)

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Modulation format: Non-retum-to-zero (NRZ)

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Channel-plan wavelength range: 1551.72 through 1542.94 nm

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Channel-plan frequency range: 193.2 through 194.3 THz

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Channel spacing: 100 GHz

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Channel tunability: 2 channels

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Output power (on): 0 to + 3 dBm

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Output power (off): 

≤−40 dBm

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Output power stability: ±0.6 dB

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Wavelength accuracy: ±100 pm

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Tuning time: Warm tune – 10 seconds; Cold start – 40 seconds

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Extinction ratio: 

≥ 9 dB

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Side-mode suppression ratio: 

≥ 30 dB

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Jitter generation compliance: GR-253/G.8251

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Receiver type: Avalanche photodiode (APD)

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Jitter tolerance compliance: GR-53/G.8251/802.3ae (LAN PHY)

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Rx DTV setting: Auto

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Rx wavelength range: 1527 to 1567 nm

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Overload: −5 dBm

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Damage input power: +5 dBm

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Optical return loss: 

≥ 27 dB

Optical Applications—Power-Limited Receiver:

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Sensitivity: −28 dBm (>33dB/0.1 nm OSNR, 0 ps/nm CD, 10−15 post-FEC BER)

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Chromatic dispersion (CD) power penalty: 3 dB (typical penalty at +1600 ps/nm and
−700 ps/nm CD)

Optical Applications—Noise-Limited Receiver:

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Required OSNR: 16 dB/0.1 nm (−8 to −20 dBm Rx input power, 0 ps/nm CD, 10−15
post-FEC BER)

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CD OSNR penalty: 4 dB (typical penalty at +1500 ps/nm and −700 ps/nm CD with Rx
input power from−8 to −20 dBm). For more detailed information, see
Table 26 on page 60.

Table 26: XENPAK-OTN Optical Signal-to-Noise Ratio (OSNR) Performance

CD Tolerance
(ps/nm)

Input-Power
Range
(dBm)

Post-FEC
BER

Pre-FEC
BER

FEC Type

OSNR (dB/0.5
nm)

OSNR (dB/0.1
nm)

0

–5 to –28

10–15

10–5

GFEC

26

33

–700 to +1600

–5 to –26

10–15

10–5

GFEC

26

33

0

–8 to –20

10–15

10–5

GFEC

9

16

60

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10-Gigabit Ethernet PIC with XENPAK

T1600 Internet Routing Node PIC Guide