850nm SM Fiber coupled VCSEL Laser diode for 4.25Gbps High speed Communication-LD-PD INC

850nm SM Fiber coupled VCSEL Laser diode for 4.25Gbps High speed Communication

850 nm single-mode VCSELs are the perfect choice for demanding sensor applications due to their improved optical characteristics. Higher-order longitudinal and transversal modes are suppressed by the innovative chip design; at the same time, the polarization is linearly stable.

	Picture	Name	Part NO.	Description	Central wavelength	Output power	Package	Lead Time	Price	Operation
		850nm SM Fiber coupled VCSEL Laser diode [Explore More]	PL-VCSEL-W0850-1-A82-CPSA	central wavelength 850nm, with TEC,output power 1mW, Tolerance ±1.5nm, Coaxial Package, HI780, FC/APC	850nm	1 mW	Coaxial	in stock	Email us	Cart

Features

● Low dependence of electrical and optical characteristics over temperature

● Data rates from OC-3 to OC-48

● Vertical Cavity Surface-Emitting Laser

● Internal TEC and Thermistor, ESD protection

● Narrow linewidth

● 2 nm tunability with TEC

E/O Characteristics

Condition:TO P = 20°C, IO P = 10.0 mA unless otherwise stated (TO P = chip backside temperature, controlled by the TEC)

Parameters	Symbol	Min	Typ	Max	Unit	Remark
Emission Wavelength	λ_R	850nm
Threshold current	I_TH		1		mA
Output Power	P_opt	0.5	1		mW
Threshold Voltage	U_TH		1.8		V
Driving Current	IOP		3		mA	Popt = 0.5mW
Laser voltage	UOP		3		V	Popt = 0.5 mW
Electro optic conversion rate	ηWP		12		%	Popt = 0.5 mW
Slope efficiency	ηS		0.3		W/A
Rise and Fall time	T_r /T_f		90/120		Psec
Differential series resistance	RS		100	200	Ω	Popt = 0.5 mW
3dB bandwidth	ν3dB	0.10	2.5		GHz	Popt = 0.5 mW Due to ESD protection diode
Relative intensity noise	RIN		-130	-120	dB/Hz	Popt = 0.3 mW @ 1 GHz
Wavelength tuning over current			0.6		nm/mA
Wavelength tuning over temperature			0.06		nm/K
Thermal resistance (VCSEL chip)	R_thermal	3		5	K/mW
Side mode supression		35			dB	I = 2 mA
Beam divergence	θ	10		25	°	Popt = 0.5mW, full width 1/e2
Spectral Width			100		MHz	Popt = 0.5 mW

Tec Characteristics	Unit	Min	Typ	Max	Remark
Tec Current	mA	-150(Heating)		+300(Cooling)	Proper Heart Sink Required
NTC Thermistor Resistance	KΩ	9.5	10.0	10.5	T=25℃@10 KΩ
NTC Thermistor Resistance	KΩ	10/exp{3892-(1/289K-I/T_OP)}

Spectrum

850nm VCSEL single-mode-vcsel-spectrum_9871c314c3.jpg

L-I Curve(T@25°C)

Temperature / wavelength tuning over TEC current*

Beam Quality Profiler (2D/3D)

2D 3D

Beam profile

In the far field, the intensity distribution of the single-mode VCSEL is perfectly Gaussian shaped

850nm single mode vcsel beam profil.jpg

Package Size

Pin definition

TO package Bottom side View

Pin	Definitions	Pin	Definitions
1	TEC ( - )	5	TEC ( + )
2	THERMISTOR ( + )	6	THERMISTOR
3	NA	7	NA
4	VCSEL Cathode	8	VCSEL anode

Absolute Maximum Ratings

Item	Unit	Min	Typ	Max
Store Temperature	℃	-40	25	125
Chip Temperature	℃	+10	25	40
Operating Current	mA	0	3.0	5.0
Forward Voltage	V	0.8	3.0	4.8
TEC Current	mA	-150	-	+300
Soldering Temperature*	℃	100	130	260
Electrical Power Dissipation	mw	-	-	5

(*TEC temperature must be below 150°C)

Application

● Access network for long distance

● Local area network

● Gigabit Ethernet

Ordering Info

PL-VCSEL-□□□□-☆-A8▽-XX

□□□□：Wavelength

0760:760nm

0850-850nm

*****

1550：1550nm

☆ ：TEC

0：Without TEC

1：With TEC

▽：Wavelength Tolerance

1：±0.5nm

2：±1.5nm

XX: Fiber and Connector Type

FS=Free Space

BFSA=Butterfly Package with HI780+ FC/APC

CPSA=Coaxial Package with HI780+ FC/APC

BFSP=Butterfly Package with HI780+ FC/PC

CPSP=Coaxial Package with HI780+ FC/PC

BFPP=PM Fiber+ FC/PC

PA=PM Fiber+ FC/APC

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