1945nm DFB SM Laser diode（TO39）

Central wavelength 1945nm, Output power 2mW, Narrow Linewidth < 2MHz, Tolerance ±1nm, TO39

Part Number : PL-DFB-1945-A-A81-TO39

Unit Price : USD [Please inquire]

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Inventory quantity : [Please inquire]

Stock NO. : A80011286

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Overview
Laser Specifications
PDF
RFQ

The PL-DFB-1945-A-A81 1945nm 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 TO39 package with TEC and PD Built in.

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

Parameter	Symbol	Min	Typ	Max	Unit
Centre Wavelength	λ	1944	1945	1946	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	2	3	5	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

Spectrum

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Tuning Characteristics

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DFB Linewidth Testing Result

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L-I Curve

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Power Stability

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Beam Quality

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2D 3D

Camera Analysis

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1945nm DFB SM Laser diode（TO39）.pdf

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1945nm DFB SM Laser diode（TO39）

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