QLD0561 SeriesCompact Visible Laser Module with Fiber Pigtail

C00123-07 July 2024

1. DESCRIPTIONThe QLD0561 series is a visible laser module based on the frequency doubling of NIR distributed feedback (DFB)
laser. The laser is assembled into a compact flat package with fiber pigtail.
2.

FEATURES• 532, 561 and 594nm light source• High fiber output power (MMF/SMF/PMF)• Low power consumption• Low intensity noise• Narrow spectral linewidth• Short pulse operation• Small size

3.

APPLICATIONS• Spectroscopy• Fluorescence microscope• Time resolved measurement• Interferometry

4.

ABSOLUTE MAXIMUM RATINGS

Fiber output
power

PARAMETERSYMBOLRATINGUNIT

DFB forward current

IfDFB

250mA

DFB forward voltage

VfDFB

2.5

V

DFB reverse voltage

VrDFB

2

V

SOA forward current

IfSOA

320mA

SOA forward voltage

VfSOA

3V

SOA reverse voltage

VrSOA

2V

QLD0561-32xx

Multi-mode fiber

QLD0561-61xx

Single-mode fiber

QLD0561-94xx

30
Pf

Multi-mode fiber
Single-mode fiber

255mW

3

Heater power

Pht

Module operating temperatureTop

20 to 30

Storage temperatureTst-10 to 50

1/40.3W

C
C

QLD0561-xxxx Series
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OPTICAL AND ELECTRICAL CHARACTERISTICS(TC = 25°C, unless otherwise specified)Fiber output
power

PARAMETER

SYMBO
LCONDITIONDFB operation current

IopDFBDFB operation voltage
SOA operation current

MIN

TYP

MAX

UNIT

CW, Pf= Pop-

150

220mA

VopDFBCW, Pf= Pop-

1.8

2.4

V

IopSOA

CW, Pf= Pop-

200

320mA

SOA operation voltage

VopSOA

CW, Pf= Pop-

1.7

3.0

V

Heater current

Iheater-0-

100mA

Heater resistanceRheater--30-

Ω

QLD0561-32xx

Multi-mode fiber

25--

QLD0561-61xx

Single-mode fiber

15--4--2---0.8-

W530532534

nm

559561563

nm

592594596

nm

QLD0561-94xx

Multi-mode fiber

Pf

CW

Pc

CW, Pf= Pop

p(1)CW, Pf= PopSingle-mode fiber

Power consumption
QLD0561-32xx
Peakwavelength

QLD0561-61xx
QLD0561-94xx
Spectral linewidth

CW, Pf= Pop--0.1

nm

Polarization extinction ratio (2)PER

CW, Pf= Pop

12--dB

Thermistor ResistanceRth

TC = 25°C,B=3375K

9.5

1010.5k

(1) Peak wavelength tolerance of +/- 1nm is available as an option.
(2) Specification for PMF pigtail option.

6.

mW

PRODUCT PART NUMBER
QLD0561- [ ][ ][ ][ ] – [ ] [ ]abc d(d) Fiber Type:(a) Wavelength:32-532nm
61-561nm
94-594nm(b) Output power:

02- 2mW
04- 4mW
15- 15mW
20- 20mW
25- 25mW(c) Connector Type:

2- FC/PC
3- FC/APC

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1- MMF 50um core/250um coating
2- MMF 105um core/250um coating
3- SMF 245um coating
4- PMF 245um coating
5- MMF 200um core/320um coating
6- SMF of Nufern S405XP
7- PMF of Nufern PM-S405-XP

QLD0561-xxxx series
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OUTLINE DRAWING AND PIN CONFIGURATION

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QLD0561-xxxx series
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SETUP AND OPTICAL POWER ADJUSTMENT PROCEDURE• SetupIntroduce individual current sourses for DFB and SOA with common cathode. Spacer anode pin shoud be left open
for normal operation. If required, introduce the other current sourse for heater pin. Thermistor pins can be used fortemperature monitoring of the module.
• Optical power adjustment
With measuring optical power,(1) Adjust DFB (and Heater) current so that the optical power becomes the maximum.
(2) Adjust SOA current to obtain the required power within the maximum rating.
(3) If needed, repeat the procedure of (1) to (2).

9. NOTICE• Safety Information
This product is classified as Class 3B laser product, and complies with 21 CFR Part 1040.10.
Please do not take a look at laser lighting in operations since laser devices may cause troubles to human eyes.
Please do not eat, burn, break and make chemical process of the products since they contain GaAs material.
• Handling products
Semiconductor lasers are easily damaged by external stress such as excess temperature and ESD.
Please pay attention to handling products, and use within range of maximum ratings.
QD Laser takes no responsibility for any failure or unusual operation resulting from improper handling, or unusualphysical or electrical stress.

QD Laser, Inc.
Contact: info@qdlaser.com

http://www.qdlaser.com

Copyright 2014-2024 All Rights Reserved by QD Laser, Inc.
Keihin Bldg. 1F 1-1 Minamiwatarida-cho, Kawasaki-ku, Kawasaki, Kanagawa Zip 210-0855 JapanAll company or product names mentioned herein are trademarks or registered trademarks of their respective owners. Information
provided in this data sheet is accurate at time of publication and is subject to change without advance notice.

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