1385nm 20mW DFB laser diode

1385nm 20mW DFB laser diode

1385 nm distributed feedback (DFB) laser diode module is a cost-effective laser source with high coherence. The DFB laser diode chip is housed in an industry-standard hermetically sealed 14-pin butterfly package, with an integrated thermoelectric cooler (TEC) and photodetector (PD).

Product features：Narrow linewidth: < 2 MHz; industry-standard 14-pin butterfly package; excellent wavelength control and stability; mode-hop-free tuning; high reliability; customer-specific wavelengths available

Part Number：MP-DFB-1385-20-A81-14BF-PA

Application area：Tunable Diode Laser Absorption Spectroscopy | H₂O (gas) monitoring

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Main parameters
General Parameters
Optional Configurations
Downloads

Main parameters

Core parameters

Central Wavelength Output Power

1385nm 20mW

Dimension Drawing

General Parameters

Detailed Parameters

Specification Table

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

Parameter	Symbol	Min.	Typ.	Max.	Unit
Center Wavelength	λ	1384.5	1385	1385.5	nm
Side-Mode Suppression Ratio	SMSR	30	40	—	dB
Threshold Current	Ith	—	20	30	mA
Operating Current	Iop	—	75	100	mA
Chip Output Power	Pf	—	20	35	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 Temperature Coefficient	—	—	-4.4	—	%/℃

Spectrum Diagram

DFB Laser Linewidth Test Results(CW, 1.572 MHz@25deg, 50mA)

1385.3.png

L-I Curve

1385.1.png

Tuning Characteristics

1385.2.png

Beam Quality

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Pin Definition：

Pin #	Definition	Pin #	Definition
1	Thermistor	8	Case Ground
2	Thermistor	9	Case Ground
3	LD(-)	10	NC
4	Detector (+)	11	LD(+)
5	Detector (-)	12	LD(-), RF
6	TEC (+)	13	LD(+)
7	TEC (-)	14	NC

Absolute Maximum Ratings:

Parameter	Unit	Min.	Typ.	Max.
Case Temperature	℃	-5	25	70
Chip Temperature	℃	10	25	40
Operating Current	mA	0	75	100
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

Ordering Information:

MP-DFB-□□□□-☆-A8▽-XX

**□□□□: Wavelength

1341: 1341nm

1385: 1385nm

1392: 1392nm

1512: 1512nm

1567: 1567nm

*****

1653.7: 1653.7nm

☆ : Output Power

A: 50mW

B: 80mW

▽: 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

Optional Configurations

Downloads

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Product title: 1385nm 20mW DFB laser diode

Product link: https://www.idealphotonics.com/product/detail/1259.html

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