Vixar atomic clock dedicated VCSEL laser 795nm/850nm/894nm in the United States-Fornitore globale

Shanghai Liangqing Optoelectronic Technology Co., Ltd

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Vixar atomic clock dedicated VCSEL laser 795nm/850nm/894nm in the United States

Vertilas/Raycan/Vixar VCSEL Company

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Vixar atomic clock dedicated VCSEL laser 795nm/850nm/894nm in the United States

VIXAR Corporation 795nm, 850nm, 894nm from the United StatesVertical cavity surface emitting lasers (VCSEL) can achieve transverse mode single longitudinal mode output, suitable for rubidium atomic clocks, cesium atomic clocks, frequency standards, magnetometers, and other directions. Good reliability, available in various packaging options, including TO-4, TO-5，PLCC-2， Bare chips, etc. It can be equipped with TEC, making it a high-quality choice for instruments such as atomic clocks.

parameter	Symbol	Units	Minimum	Typical	Maximum	Notes
Maximum DC current (CW)		mA	--	--	2	To remain single-mode
Threshold current	Ith	mA	0.6	0.75	0.9
Operating voltage	Vf	Volts	--	2.1	3
Series resistance (VCSEL)	Rs	Ohms	150	175	300
Slope efficiency	SE	mW/mA	--	0.12	--
Optical output power	Lop	mW	0.06	0.1	0.17	In single mode. T=85°C
Optical output power	Lop	mW	0.1	--	0.25	In single mode. T=25°C
Optical output power	Lop	mW	0.04	0.08	0.16	In single mode. T=95°C
Reverse breakdown voltage		V	10	--	--	Ir ≤ 1nA
Operating wavelength	λop	nm	794.5	795	795.5
Side Mode Suppression Ratio	SMSR	dB	20	--	--	Unmodulated.
Spectral line width	Δλ	MHz	--	--	100	Unmodulated.
Polarization extinction ratio	PER	dB	16	--	--	0.25mA < If < 2mA (Note 4)
Beam divergence 1/e2		deg	--	15	--	Whole angle
Beam divergence FWHM	FWHM	deg	--	9	--	Whole angle
Wavelength current coefficient		nm/mA	--	0.42	0.6
Wavelength temp. coefficient		nm/°C	--	0.055	0.061
Rise time		ps	--	--	100	20%-80%
Fall time		ps	--	--	100	20%-80%
Modulation bandwidth (-3 dB)	BW	GHz	4	--	--
ESD Survival		V	1000	--	--	(Notes 3, 5)

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