1937.5nm DFB Tunable Laser Diode

The PL-DFB-1937.5-A-A81 1937.5nm DFB laser diode module made by LD-PD is a cost effective, highly coherent laser source. The DFB laser diode chip is packaged in an industry standard hermetically sealed 14 pin butterfly package with TEC and PD Built in.

Name	Model	Description	Parameter	Price
1937.5nm DFB PM Laser diode [PDF] [RFQ]	PL-DFB-1937.5-A-A81-SA Stock NO.: A80012437	Central wavelength 1937.5nm, Output power 2mW, Narrow Linewidth < 2MHz, Tolerance ±1nm, SMF-28E, FC/APC	Central wavelength: 1937.5nm Output power: 2mW Package: 14pin - BF Lead Time: 4-6 weeks	[Please inquire] Call us
1937.5nm DFB PM Laser diode [PDF] [RFQ]	PL-DFB-1937.5-A-A81-PA Stock NO.: A80012438	Central wavelength 1937.5nm, Output power 2mW, Narrow Linewidth < 2MHz, Tolerance ±1nm, PM Fiber, FC/APC	Central wavelength: 1937.5nm Output power: 2mW Package: 14pin - BF Lead Time: 4-6 weeks	[Please inquire] Call us

Name

Model

Description

Parameter

Price

1937.5nm DFB PM Laser diode [PDF] [RFQ]

PL-DFB-1937.5-A-A81-SA
Stock NO.: A80012437

Central wavelength 1937.5nm, Output power 2mW, Narrow Linewidth < 2MHz, Tolerance ±1nm, SMF-28E, FC/APC

Central wavelength: 1937.5nm

Output power: 2mW

Package: 14pin - BF

Lead Time: 4-6 weeks

[Please inquire]

Call us

1937.5nm DFB PM Laser diode [PDF] [RFQ]

PL-DFB-1937.5-A-A81-PA
Stock NO.: A80012438

Central wavelength 1937.5nm, Output power 2mW, Narrow Linewidth < 2MHz, Tolerance ±1nm, PM Fiber, FC/APC

Central wavelength: 1937.5nm

Output power: 2mW

Package: 14pin - BF

Lead Time: 4-6 weeks

[Please inquire]

Call us

Parameter

Features

● Narrow Linewidth < 2MHz

● Excellent wavelength control and stability

● Industry Standard 14 pin Butterfly package

● Mode-Hop free tuning

● Excellant reliability

● Customer specific wavelengths available

Laser Specifications

Electrical/Optical Characteristics(Tsub=25°C, CW bias unless stated otherwise)

Parameter	Symbol	Min	Typ	Max	Unit
Centre Wavelength	λ	1937	1937.5	1938	nm
Side Mode Suppression Ratio	SMSR	30	40		dB
Threshold Current	Ith		20	30	mA
Operating Current	Iop		100	120	mA
Chip output Power	Pf	1	2	3	mW
Quantum Efficiency	η	0.08	0.12		mW/mA
Current Tuning Coefficient	∆λ/∆I		0.015		nm/mA
Temperature Tuning Coefficient	∆λ/∆T		0.12		nm/K
Forward Voltage	Vf		1.3	2	V
Thermistor Resistance	RT	9.5	10	10.5	KΩ
Thermistor Temp. Coefficient			-4.4		%/°C
Connector	FC/APC

Spectrum

Tuning Characteristics

L-I Curve

Beam Quality

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Camera Analysis

Package Size

Pin definition

Pin Connection

PIN#	Function	PIN#	Function
1	Thermistor	8	Case Ground
2	Thermistor	9	Case Ground
3	LD(-)	10	NC
4	NC	11	LD(+)
5	NC	12	LD(-)
6	TEC (+)	13	LD (+)
7	TEC (–)	14	NC

Absolute Maximum Ratings

Item	Unit	Min	Typ	Max
Case Temperature	℃	-5	25	70
Chip Temperature	℃	+10	25	40
Operating Current	mA	0	100	120
Forward Voltage	V	0.8	1.2	1.8
TEC Current	A	-	-	1.2
Reverse Voltage（LD）	V	-	-	2.0
Reverse Voltage(PD)	V	-	-	20

Application

● Tunable diode laser absorption spectroscopy

● Gas Monitoring

Ordering Info

PL-DFB-□□□□-☆-A8▽-XX

□□□□：Wavelength

1512:1512nm

*****

1653.7: 1653.7nm

1937.5: 1937.5nm

☆ ：Output Power

A：2mW

B：5mW

▽：Wavelength Tolerance

1：±1nm

2：±2nm

XX: Fiber and Connector Type

SA=SMF-28E+ FC/APC

SP=SMF-28E+ FC/PC

PP=PM Fiber+ FC/PC

PA=PM Fiber+ FC/APC

1937.5nm DFB Tunable Laser Diode

Product model

Parameter

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