FTTH Optical Cable TV Externally Modulated Transmitter with AGC

Product Description

FTTH Optical Cable TV Externally Modulated Transmitter with AGC
Description
 
ST15Exx is a high performance external modulation 1550nm Optic transmitter with a high quality LiNbO3 external modulator and a high power, narrow bandwidth, low noise DFB laser. It adopts a series of unique innovation technique to reach the excellent system control. With 47~862Mhz bandwidth, CNR ≥ 53dB, CTB ≤ -65dB, CSO ≤ - 65dB, SBS: 13, 16, 18adjustable, it can make CATV network transmit video, audio and data with high performance. The machine can is equipped with perfect RS232 communication interface, SNMP network management and 1+1 backup power supply.
 








ST15Exx Optic transmitter features Two-way optic output, narrow spectral line, and can be used for long distance transmission. With ITU-T wavelength, it can implement the access of a broadband PON network or FTTH by using the WDM Technologies.
 
ST15ExxC: Standard type, dual fiber output CATV work wavelength, 1MHz laser line width, SBS 13, 16,18dBm adjustable, SNMP network management optional.
 
ST15ExxU: Standard type, dual fiber output ITU wavelength adjustable, 1MHz laser line width, SBS 13, 16,18dBm adjustable, SNMP network management optional.
 

Main Features
Externally modulated technology, no laser chip, low dispersion distortion, high extinction ratio.
Narrow bandwidth (Typ=1Mhz), Lower noise, DFB continuous wave laser.
The working bandwidth is up to 47~1080Mhz
Unique innovation technology, provide excellent CNR, CTB, CSO&SBS.
ITU standard wavelength adjustable, the user can adjust and set the laser wavelength on the front-panel with ±0.05nm stepping in the range of ±200GHz (±1.6nm), used in the network upgrading and expansion of WDM system.
AGC/MGC Mode is optional at spot, OMI can be optimized at spot.
Perfect RS232 communications interface.
 SNMP network management optional.
1+1 backup power supply optional.
Temperature in the housing auto-control.
Excellent P/P ratio

Parameter

erformance			Index		Supplement
Optic feature	Operating wavelength	(nm)	1540~1563
			ITU-TG.692
	Wavelength adjustable range	(nm)	±1.6 (±200GHz)
	Wavelength adjustable mode		±0.05nm stepping
	Linewidth	(MHz)	≤1		FWHM(Δλ)
	Side mode suppression ratio	(dB)	≥45		SMSR
	Equivalent noise intensity	(dB/Hz)	≤-160		RIN (20~1000MHz)
	Output power	(dBm)	1×5		Optional 1×3, 1×6, 1×7
	Return loss	(dB)	≥55
	optical fiber connector		SC/APC		Optional FC/APC,LC/APC
RF feature	Work bandwidth	(MHz)	47-862		47~1000, 47~1080 optional
	Input level	(dBmV)	18~28		AGC
	Flatness	(dB)	≤±0.75		45~862MHz
			≤±1.5		862~1000MHz (optional)
	Return loss	(dB)	>16
	Input impedance	(Ω)	75
	RF port		F-Female
Link feature	Transmit channel		PAL-D/60CH	PAL-D/99CH
	CNR1	(dB)	≥52	≥50.5	Back to back
	CNR2	(dB)	≥50.5	≥49	50Km optical fiber, 0dBm receive
	CTB	(dB)	≤-65	≤-65
	CSO	(dB)	≤-65	≤-65
	SBS restrain	(dBm)	13
General feature	SNMP network management interface		RJ45
	Communication interface		RS232
	Power supply	(VAC)	90~265		50/60Hz
		(VDC)	-48		30~72
	Power Consume	(W)	≤50		Single power works
	Operating temp.	(°C)	0~50		Machine temp. control automatically
	Storage temp.	(°C)	-40~85
	Operating relative humidity	(%)	5~95
	Size	(")	19×14.5×1.75 (W)x(D)x(H)

 
PARAMETERS FOR 2 OUTPORT

Performance				Index
Wavelength ADJ. Range			(nm)	±1.6 (±200GHz)
Wavelength ADJ. Mode				±0.05nm stepping
Side mode suppression ratio			(dB)	≥45
Equivalent noise intensity			(dB/Hz)	≤-160
Input level			(dBmV)	18~28
Input impedance			(Ω)	75
RF connector				F-Female
SNMP NM interface				RJ45
Communication interface				RS232
Linewidth			(MHz)	Typ.=0.65
Output power			(dBm)	2*3,2*5, 2*6, 2*7, 2*9, 2*10, 2*11 optional
Return loss			(dB)	≥50
Link feature	Transmit channel PAL-D/60CH	CNR1	(dB)	≥53
		CNR2	(dB)	≥51.5
		CTB	(dB)	≤-65
		CSO	(dB)	≤-65
	Transmit channel PAL-D/99CH	CNR1	(dB)	≥51.5
		CNR2	(dB)	≥49.5
		CTB	(dB)	≤-65
		CSO	(dB)	≤-65
SBS restrain adjustable			(dBm)	13~18
Optical fiber connector				SC/APC