TO激光器--大连斯耐尔科技开发有限公司

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TDLAS Methane sensor application 1650-1653nm laser (SN-LT-01)

1. Description:

l 1650.9nm or 1653.7nm typical emission wavelength

l Data rate operation from DC to 2.5Gbps

l Compliant with ROSH

The laser diodes cover customer selection of wavelengths from 1649nm to 1654nm which are fabricated in a hermetically sealed 8-pin TO56 package. The laser diodes contains thermoelectric cooler (TEC), thermistor, monitor photodiode, double optical isolator to secure high quality laser performance. The double optical isolator can effectively prevent laser oscillation caused by return light of strong light reflecting surface.

The Laser Diodes Wavelength:1653.7±0.5nm or 1650.9±0.5nm,Output power ≥5mW at 65mA, Collimating lens output.

2. Absolute Maximum Rating

Parameter	Symbol	Condition	Min	Typ	Max
Storage temperature	TS	-	-40℃	-	100℃
Storage Humidity	RH		-	-	85℃
Operation temperature	TOP	-	-20℃	-	70℃
Forward Current	IF	CW	-	-	100mA
Laser Reverse Voltage	VLR	-	-	-	2V
PD Forward Current	IFPD	-	-	1.0mA	3mA
PD Reverse Voltage	VRPD	-	-	5V	10V
TEC Current	ITEC	-	-	0.8A	1A
TEC Voltage	VTEC	-	-	3.3V	5V

3. Optical Characteristics(at 25℃ laser temperature)

Parameter

Symbol

Condition

Min

Typ

Max

Center Wavelength

λc

TL=15-35℃

-40℃

-

100℃

Optical Output Power

Po

IF=65mA CW

3mW

5mW

-

Threshold Current

Ith

T=25 ℃

-

10mA

14mA

Optical Isolation

LW

Full width, half maximum(FWHM)

-

3Mhz

-

Bandwidth(@-3dB)

BW

-

-

2.5Ghz

-

Side-mode-Suppression Ratio

SMSR

CW

35dB

40dB

-

Wavelength Drift(EOL)

△λ

25-year lifetime

-

1.0mA

±0.1nm

Wavelength Temperature coefficient

△λ/△T

TEC temperature at 15℃ to 35℃

-

0.1nm/℃

-

Wavelength Current coefficient

△λ/△I

-

-

0.01nm/mA

-

Slope Efficiency

η

CW

0.05mW/mA

0.08mW/mA

0.2mW/mA

Operating current

Iop

CW

-

65mA

100mA

TEC set temperature

Ta

-

15℃

-

35℃

Laser Forward Voltage

VF

CW

-

1.16V

1.5V

Thermistor Current

Itc

-

10uA

-

100uA

Thermistor Resistance

Tth

TL=25℃

9.5kΩ

10kΩ

10.5kΩ

Thermistor temperature

TM

-

-

-

100℃

Parameter	Symbol	Condition	Min	Typ	Max
Center Wavelength	λc	TL=15-35℃	-40℃	-	100℃
Optical Output Power	Po	IF=65mA CW	3mW	5mW	-
Threshold Current	Ith	T=25 ℃	-	10mA	14mA
Optical Isolation	LW	Full width, half maximum(FWHM)	-	3Mhz	-
Bandwidth(@-3dB)	BW	-	-	2.5Ghz	-
Side-mode-Suppression Ratio	SMSR	CW	35dB	40dB	-
Wavelength Drift(EOL)	△λ	25-year lifetime	-	1.0mA	±0.1nm
Wavelength Temperature coefficient	△λ/△T	TEC temperature at 15℃ to 35℃	-	0.1nm/℃	-
Wavelength Current coefficient	△λ/△I	-	-	0.01nm/mA	-
Slope Efficiency	η	CW	0.05mW/mA	0.08mW/mA	0.2mW/mA
Operating current	Iop	CW	-	65mA	100mA
TEC set temperature	Ta	-	15℃	-	35℃
Laser Forward Voltage	VF	CW	-	1.16V	1.5V
Thermistor Current	Itc	-	10uA	-	100uA
Thermistor Resistance	Tth	TL=25℃	9.5kΩ	10kΩ	10.5kΩ
Thermistor temperature	TM	-	-	-	100℃