1680nm DFB Laser diode for C2H6 Sensing

The PL-DFB-1680-A-A81 1680nm 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
1680nm DFB PM Laser diode [PDF] [RFQ]	PL-DFB-1680-B-A82-PA Stock NO.: A80012408	Output power 20 mW,Narrow Linewidth < 2MHz, Tolerance ±2nm,PM Fiber,FC/APC	Central wavelength: 1680nm Output power: 20mW Package: 14pin - BF Lead Time: in stock	[Please inquire] Call us
1680nm DFB SM Laser diode [PDF] [RFQ]	PL-DFB-1680-B-A82-SA Stock NO.: A80012407	Output power 20 mW,Narrow Linewidth < 2MHz, Tolerance ±2nm,SM Fiber,FC/APC	Central wavelength: 1680nm Output power: 20mW Package: 14pin - BF Lead Time: in stock	[Please inquire] Call us
1680nm DFB PM Laser diode [PDF] [RFQ]	PL-DFB-1680-B-A81-PA Stock NO.: A80012406	Output power 20 mW,Narrow Linewidth < 2MHz, Tolerance ±1nm,PM Fiber,FC/APC	Central wavelength: 1680nm Output power: 20mW Package: 14pin - BF Lead Time: in stock	[Please inquire] Call us
1680nm DFB SM Laser diode [PDF] [RFQ]	PL-DFB-1680-B-A81-SA Stock NO.: A80012405	Output power 20 mW,Narrow Linewidth < 2MHz, Tolerance ±1nm,SM Fiber,FC/APC	Central wavelength: 1680nm Output power: 20mW Package: 14pin - BF Lead Time: in stock	[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	1679	1680	1681	nm
Side Mode Suppression Ratio	SMSR	30	40		dB
Threshold Current	Ith		20	30	mA
Operating Current	Iop		80	120	mA
Chip output Power	Pf	10	15	30	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

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Tuning Characteristics

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DFB Linewidth Testing Result

Power Stability

Wavelength Stability

2F Signal testing Condition(200pm C2H6,20m optical path,25℃,1atm)

Beam Quality

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Package Size

Pin definition

Schematic Diagram (Top View)

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Pin Connection

PIN#	Function	PIN#	Function
1	Thermistor	8	Case Ground
2	Thermistor	9	Case Ground
3	Laser Cathode (-)	10	NC
4	NC	11	Laser Anode (+)
5	NC	12	Laser Cathode (-)
6	TEC (+)	13	Laser Anode (+)
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	150
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

● C₂H₆Monitoring

Ordering Info

PL-DFB-□□□□-☆-A8▽-XX

□□□□: Wavelength

1512: 1512nm

*****

1653.7: 1653.7nm

1680: 1680nm

☆ ：Output Power

A：10mW

B：20mW

▽：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

1680nm DFB Laser diode for C2H6 Sensing

Product model

Parameter

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