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Optical characteristics – Delta Electronics LCP-155B4JSRx User Manual

Page 3

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DELTA ELECTRONICS, INC.

3 Jan.,

2008

Rev. 0D

www.deltaww.com

Optical Characteristics

(V

CC

=3.135V to 3.465V, Data Rate=155Mb/sec, PRBS=2

23

-1 NRZ, 9/125

μm SMF)

Parameter Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter

Output Optical Power (Avg.)

P

O

-15

-8

dBm

Optical Extinction Ratio

E.R.

10

dB

Center Wavelength

λ

C

1263 1310 1360 nm

Spectral Width (RMS)

σ

7.7

nm

Optical Rise/Fall Time

t

r

/t

f

2 ns 1

Output Eye

Compliant with Bellcore TR-NWT-000253 and ITU recommendation
G.957

Receiver
Sensitivity (Avg.)

P

IN

-31

dBm 2

Input Optical Wavelength

λ

1310 nm

LOS-Deasserted (Avg.)

P

A

-31

dBm

LOS-Asserted (Avg.)

P

D

-48 dBm

LOS-Hysteresis P

A

-P

D

0.5 dB

Overload P

O

-3 dBm


Notes:
1. These are unfiltered 10%~90% values

2. The sensitivity is provided at a BER of 1×10

-10

or better with an input signal consisting of 155Mb/s,

2

23

-1 PRBS and ER=9dB.

Mask of the eye diagram for the optical transmit signal