optical transmitter of 1550nm External Modulated Transmitter

Optical Specifications

Laser Type

Cooled DFB LD with isolator

Optical Wavelength

nm

1555 ± 5

Connector Type

SC/APC or FC/APC

Laser RIN Noise Density

dB/Hz

≥-160

Optical Power

dBm

≤7 / 9 (Optional)

Optical Output Port

2

SBS Suppression Threshold

dBm

13,16,18

RF Specifications

Operating Bandwidth

MHz

45 to 870

RF Input Impedance

Ω

75

unbalanced

RF Input Return Loss

dB

≤-16

RF Input Level

dBµV/ch

15 to 25 (80 dBµV/ch nominal value @ 77 NTSC channels loading)

CNR

dB

52 (typical)

Link budget is defined by output power to 0 dBm optical input at receiver under 65km fiber link + EDFA,SBS setting=16dBm test conditions.

CSO

dBc

≤ -65 @ Port1

≤ -63 @ Port2

CTB

dBc

≤ -65 dBc

XM

dB

≤ -65 dB

OMI

3% ± 0.25

Flatness

dB

≤± 0.75

Connector Type

F type female

Test Point

dB

-10 ± 1

Relative to RF input power to laser @59CH PAL-D CW loading

General Specifications

Control Interface

RS-485 or Ethernet

Power Supply

90 to 260 VAC, 50/60 Hz, 100W(Max.)

Operating Temperature

°C

0 to +50

Storage Temperature

°C

-20 to +60

Operating Humidity

%

85% Max

Dimensions: (HxWxD)

mm

49 x 480 x 350