685nm FP Laser Diode     


The PL-FP-685-A-A81 is laser diode module designed for optical measurement and communication. The laser is packaged in 14-pin standard butterfly package with monitor photodiode and thermo-electric cooler (TEC). This Module is pigtailed with 0.7-1.0 m of single mode polarization maintaining fiber and connectorized by FC/APC connector.



Product model


Name Model Price
685nm PM FP Laser Diode   [PDF]  [RFQ]

PL-FP-685-A-A81-PA
[Please inquire]
685nm SM FP Laser Diode   [PDF]  [RFQ]

PL-FP-685-A-A81-SA
[Please inquire]

Parameter


Features

● Optical output: 30mW 

● FC-APC connector

● Efficient coupling into single mode fiber

● 14-pin butterfly package

● CW or pulsed operation 

● Internal monitor PD and TEC

● SM or PM Fiber (ø0.9mm) 

Laser Specifications

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

Parameter

Symbol

Min

Typ

Max

Unit

Centre Wavelength

λ

680

685

690

nm

Spectral Width

Δλ

0.2

0.5

0.8

nm

Threshold Current

Ith


25

40

mA

Operating Current

Iop


60

80

mA

Fiber output Power

Pf

10

20

30

mW

PD Dark Current (VRD=5V)

Id



0.1

uA

Extinction RatioPM VERSION

PER

17

20


dB

Coupled Fiber Type

SM600 / PM Fiber

Forward Voltage

Vf


1.8

2.5

V

Thermistor Resistance

RT

9.5

10

10.5

Thermistor Temp. Coefficient



-4.4


%/°C

Connector

FC/APC


Spectrum

655nm FP Laser Diode.png

L-I Curve

655nm FP Laser Diode1.png


Package Size

655nm FP Laser Diode2.jpg

Pin definition

654a1e60be9ed.jpg


1

Thermoelectric Cooler (+)

8

N/C

2

Thermistor

9

N/C

3

PD Monitor Anode (-)

10

Laser Anode (+)

4

PD Monitor Cathode (+)

11

Laser Cathode (–)

5

Thermistor 

12

N/C

6

N/C

13

Case Ground

7

N/C

14

Thermoelectric Cooler (–)


Absolute Maximum Ratings

Item

Unit

Min

Typ

Max

Case Temperature

-20

25

70

Chip Temperature

+10

25

40

Operating Current

mA

0

60

80

Forward Voltage

V

0.8

1.2

1.8

TEC Current

A

-

1.2

1.4

Reverse VoltageLD

V

-

-

1.8

Reverse Voltage(PD)

V

-

-

10


Application

● Fiber transmission systems, 

● Laser interferometric

● Laser indication 

● Testing Light source


Ordering Info

PL-FP-□□□□-☆-A8▽-XX

□□□□:Wavelength

405:405nm

633:633nm

655:655nm

680:680nm

850:850nm

*****

1550:1550nm

☆ :Output Power

A:30mW

B:50mW

▽:Wavelength Tolerance

1:±5nm

2:±10nm

XX: Fiber and Connector Type

SA=SM600+ FC/APC

SP=SM600+ FC/PC

PP=PM Fiber+ FC/PC

PA=PM Fiber+ FC/APC

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