VOA700|Zhejiang GT Lasers Tech. Co., Ltd.

GT LASERS VOA700 series assemble multi high-resolution electricity controlled optical attenuators into 1RU or 3D housing, mainly applied to optical adjustment and automatic equilibrium in DWDM system's and multi-channel network and optical amplify network.

VOA700 series is a high-end product series. Each attenuator has high-resolution input and output optical power monitoring and attenuator value monitoring, with automatic mode and manual mode. Client can set the automatic fixed attenuation mode and automatic fixed output mode in automatic mode. RS232 and RJ45 provide serial communication and SNMP network interface. LCD on the front panel provides every work parameter and fault alarm of the whole unit. All the optical port can install on the front panel or back panel.

◉ High efficiency space, 1RU casing can contain16ways optical attenuator.

◉ High resolution, ≤0.1dB

◉ High-accuracy optical input and output power monitor and display.

◉ Detection and display of high-precision attenuation.

◉ Can be set to automatic fixed power output mode.

◉ Attenuation range 20dB, 30dB, 35dB, 40dB, 45dB optional.

◉ Equipment power has three attenuation states to choose from.

◉ Low insertion loss.

◉ Low wavelength dependence loss.

◉ Low polarization dependence loss.

◉ Front panel LCD displays working status and parameters.

◉ Completed RS232 and SNMP.

◉ Excellent P/P ratio in this area.

◉ DWDM system, power adjustment and automatic equalization in multi-channel.

◉ Power control into narrowband wavelength division multiplexers (WDMs) and configurable networks.

◉ In Lab.

Performance			Index			Supplement
Performance			Min.	Typ.	Max.	Supplement
Optical feature	Operating wavelength range	(nm)	1200		1620
	Optimum operating wavelength range	(nm)	1525		1575
	Resolution	(dB)			0.1
	Minimum attenuation	(dB)		0.7	1.2
	Attenuation Range	(dB)	20			VOA720
			30			VOA730
			35			VOA735
			40			VOA740
			45			VOA745
	Attenuation setting accuracy	(dB)	-0.1		+0.1
	Attenuation monitor accuracy	(dB)	-0.2		+0.2
	Tuning speed	(ms)		20
	Polarization mode dispersion	(ps)			0.1
	Polarization dependence gain	(dB)			0.2
	Polarization dependence loss	(dB)			0.3
	Wavelength dependence ripple	(dB)			0.2
	Temperature-related attenuation	(dB)			0.15
	Power handling	(mW)			500
	Return loss	(dB)	-50			PC
	Power attenuation state (with unit powered off)		Keep ATT/Keep			K grade
			Open ATT/Min			O grade
			Closed ATT≥40dB			C grade
	Input optical power detection range	(dBm)	-50		+27
	Output optical power detection range	(dBm)	-50		+27
	Detection accuracy	(dB)	-0.1		+0.1
	Fixed output Error	(dB)	-0.15		+0.15	Automatic mode
General feature	SNMP network management interface		RJ45
	Series interface		RS232
	Power supply	(V)	90		265	220VAC
	Power supply	(V)	30		72	-48VDC
	Power consume	(W)			50
	Operating temp.	(°C)	0		65
	Storage temp.	(°C)	-40		80
	Relative humidity	(%)	5		95
	Size (W)×(D)×(H)	(")	19×14.5×1.75			1RU (19”)
			19×11×1.75			1RU (19”)
			12.4×15.4×5.25			3D (12.4”, desk-type)

Mode	Attenuate range	Attenuator value	Power down attenuate status	Peak working wavelength	Electronic interface
VOA720/01-KC	20dB	1 way	Keep original set attenuate status	C-Band 1525~1575nm	RS232, RJ45, SNMP
VOA720/04-KC		4 way
VOA720/08-KC		8 way
VOA720/16-KC		16 way
VOA735/01-KC	<35dB	1 way		C-Band 1525~1575nm	RS232, RJ45, SNMP
VOA735/04-KC		4 way
VOA735/08-KC		8 way
VOA735/16-KC		16 way
VOA740/01-KC	35~40dB	1 way		C-Band 1525~1575nm	RS232, RJ45, SNMP
VOA740/04-KC		4 way
VOA740/08-KC		8 way
VOA740/16-KC		16 way
VOA730/01-CC	30dB	1 way	Closed，turn off， Maximum attenuate	C-Band 1525~1575nm	RS232, RJ45, SNMP
VOA730/04-CC		4 way
VOA730/08-CC		8 way
VOA730/16-CC		16 way
VOA740/01-CC	40dB	1 way	Closed，turn off， Maximum attenuate	C-Band 1525~1575nm	RS232, RJ45, SNMP
VOA740/04-CC		4 way
VOA740/08-CC		8 way
VOA740/16-CC		16 way
VOA730/01-OC	30dB	1 way	Open，turn on， Minimum attenuate	C-Band 1525~1575nm	RS232, RJ45, SNMP
VOA730/04-OC		4 way
VOA730/08-OC		8 way
VOA730/16-OC		16 way

Main function：1、Attenuate value and input、output optical power test, testing range：-50~+27dBm，accuracy：±0.1dB
2、Manpower、automatic mode
3、Automatic mode: can set fixed attenuate mode and output mode.

VOA700

VOA135

VOA230

VOA500

VOA700