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    • 780nm DFB 14Pin Butterfly Laser Diode     


    The PL-DFB-780-A-A81 780nm 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.We built in isolator in butterfly package to Protection Against Optical Damage and improve Frequency and Power Stability.



    Product model


    Name Model Price
    780nm DFB PM Laser diode With isolator (Seed Laser)   [PDF]  [RFQ]

    PL-DFB-0780-A-A81-PA     		[Please inquire]
     Call us 
    780nm DFB SM Laser diode With isolator   [PDF]  [RFQ]

    PL-DFB-0780-B-A81-SA     		[Please inquire]
     Call us 
    780nm DFB PM Laser diode With isolator   [PDF]  [RFQ]

    PL-DFB-0780-B-A81-PA     		[Please inquire]
     Call us 

    Parameter


    Features

    ● Narrow Linewidth < 1MHz

    ● Excellent wavelength control and stability

    ● Isolator Built inside

    ● Industry Standard 14 pin Butterfly package

    ● Mode-Hop free tuning

    ● Excellent 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

    779.0

    780.0

    781.0

    nm

    Side Mode Suppression Ratio

    SMSR

    40

    50

    70

    dB

    Isolation degree

    ISO

    28

    30


    dB

    Threshold Current

    Ith


    50

    70

    mA

    Operating Current

    Iop


    150

    250

    mA

    Power in fiber

    Pf

    30

    40

    80

    mW

    Quantum Efficiency

    η


    0.2


    mW/mA

    Current Tuning Coefficient

    ∆λ/∆I


    0.001


    nm/mA

    Temperature Tuning Coefficient

    ∆λ/∆T


    0.06


    nm/deg

    Forward Voltage

    Vf


    1.3

    2

    V

    Thermistor Resistance

    RT

    9.5

    10

    10.5

    KΩ

    Thermistor Temp. Coefficient



    -4.4


    %/°C

    Fiber+Connector

    HI780+FC/APC/PM780+FC/APC


    Spectrum

    780nm dfb laser diode for Rb(High Power).png

    Wavelength Tuning Ability

    780nm dfb laser diode for Rb(High Power)3.png


    DFB Linewidth Testing Result

    780nm dfb laser diode for Rb(High Power)1.png


    L-I Curve

    780nm dfb laser diode for Rb(High Power)2.png


    Package Size

    777.3.png

    Pin definition

    ZQIRNQSF5.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 (–)

    Note:

    In the description for Above Table 1/10/11/14, the letters indicate the polarity of the electronic component, while the symbols in parentheses indicate the polarity of the external power supply.

    The MPD operates under negative voltage; therefore, the MPD polarity is opposite to the external power supply polarity.


    Absolute  Maximum Ratings

    Item

    Unit

    Min

    Typ

    Max

    Case Temperature

    ℃

    -5

    25

    70

    Chip Temperature

    ℃

    +10

    25

    40

    Operating Current

    mA

    0

    150

    250

    Forward Voltage

    V

    0.8

    1.2

    2.1

    TEC Current

    A

    -

    1.2

    1.2

    Reverse Voltage（LD）

    V

    -

    -

    2.0

    Reverse Voltage(PD)

    V

    -

    -

    20

    Application

    ● Tunable diode laser absorption spectroscopy

    ● CPT Application

    Ordering Info

    PL-DFB-□□□□-☆-A8▽-XX

    □□□□：Wavelength

    780: 780.0nm

    1270: 1270nm

    1532: 1532nm

    1392: 1392nm

    1512: 1512nm

    1567: 1567nm

    *****

    1653.7: 1653.7nm

    ☆: Output Power

    A: 7mW

    B: 30mW

    C: 50mW

    ▽: Wavelength Tolerance

    1: ±1nm

    2: ±2nm

    XX: Fiber and Connector Type

    SA=HI780+ FC/APC

    SP=HI780+ FC/PC

    PP=PM 850Fiber+ FC/PC

    PA=PM 850Fiber+ FC/APC




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