1,CATV Fiber Optic 1550nm Transmitter
2,Direct Modulated
3,SBS restrain>=17dBm
4,CSO<=-57dB CNR>=50dB
5,Can be used in FTTx

HT1500BC (CATV wavelength)
HT1500BU (ITU standard wavelength)
CATV Direct Modulated Fiber Optic 1550nm Transmitter

 

Product description

External modulation technology for HT1500B 1550nm transmitter, with the laser working in direct current, has the advantages of no laser chirp, low dispersion distortion, large extinction ratio, and high speed. 1550nm transmitter also has the disadvantages of high cost and high difficulty in manufacturing.Direct modulation will lead to high laser chirp (Laser's bias current is modulated by signal and the optical spectrum shifts and shakes). Laser chip will interact with dispersion effect caused by standard single mode fiber (SMF-28), which will generate serious distortion in the place of 1550nm. This kind of distortion will become more serious with the increase of transmission distance, bandwidth and channel number.At present, international high performance direct modulation 1550nm transmitter has no obvious performance inferior while transmitting an analog and digital multiplexing full channel signal with transmission distance≤15Km or transmitting digital load with transmission distance≤40Km.Huatai HT1500B is a direct modulation 1550nm transmitter with high index and without AGC function. It adopts high linearity and low chirp DFB laser, built-in pre-distortion compensation and AGC, APC, ATC closed loop control, which improves the system index obviously. The 1550nm transmitter can be used in FTTx (≤10Km) of second-grade service area (Sub-HE), and can also be used in WDM narrow-band multiplexing and IP/QAM.HT1500BC 1550nm transmitter: CATV wavelength.HT1500BU 1550nm transmitter: ITU standard wavelength. 

Product feature

Low chirp, high linearity DFB laser.

Dual module RF driver, high efficient laser pre-distortion adjustment.

Intuitionistic modulation status display.

Perfect APC, ATC closed loop control.

Built-in dual back-up power supply, switch automatically.

Casing temperature auto-control

 

Technical Index

	Wavelength
	Linewidth
	Side mode suppression ratio
	Extinction ratio
	Equivalent noise intensity
	Output power
	Return loss
	optical fiber connector
	Work bandwidth
	Input level
	Flatness
	Return loss
	Input impedance
	RF test
	Transmit channel
	CNR
	CTB
	CSO
	SBS restrain
	Network management interface
	Power supply
	Power Consume
	Work temp.
	Storage temp.
	Operating relative humidity
	Size (W)x(D)x(H)		483×360×44 ( mm )