1685nm DFB SM Laser diode (A Type)


Central wavelength 1685nm; Output power 30 mW, Narrow Linewidth < 2MHz, Tolerance ±1nm, SM Fiber, FC/APC

Part Number  :  PL-DFB-1685-B-A81-SA
Unit Price  :  USD [Please inquire]
Lead time  :   [Please inquire]
Inventory quantity   :   [Please inquire]
Stock NO.   :  A80012543
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The PL-DFB-1685-A1 1685nm 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.

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

Parameter

Symbol

Min

Typ

Max

Unit

Centre Wavelength

λ

1684

1685

1686

nm

Side Mode Suppression Ratio

SMSR

30

40


dB

Threshold Current

Ith


20

30

mA

Operating Current

Iop


230

300

mA

Chip output Power

Pf

10

30

40

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

Thermistor Temp. Coefficient



-4.4


%/°C

Connector

FC/APC


Spectrum

1685.jpg

L-I Curve

1685.1.png


DFB Linewidth Testing Result

1680.jpg


Tuning Characteristics

1685.2.jpg

Beam Quality

D)XRNI6(B736%L%HB68S3.jpg    

2D 


 ZUYY5)4Z332N5V9_ZJ`JF.png

3D

Camera Analysis 

89A31A99B922B0A5004C93A98748FF54.png


Dimensions and Pin definitions


TYPE A 

pp.png

TYPE A Pin Connection

PIN#

Function

PIN#

Function

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


Related



Name Model Price
1685nm DFB PM Laser diode (A Type) [PDF]

PL-DFB-1685-B-A81-PA

USD 2950.00 
 

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