QLD1a61-xx30GzWtt series
1m-range 50ps DFB Laser BFY Module under gain switched Operation

C00282-02 March 2024

1. DESCRIPTIONThe QLD1a61-xx30GzWtt series is a 1m-wavelength range distributed feedback (DFB) laser for use in seeder andsensing applications. The laser is assembled into a 14-pin butterfly package with an optical isolator, a monitor PD anda thermo-electric cooler.

2.

FEATURES• Single longitudinal mode operation• Fiber-pigtailed 14-pin butterfly package with a monitor PD and a TEC• Optical isolator integration• Polarization maintaining fiber integration• 50 ps gain switched optical pulse

3.

APPLICATIONS• Seeder for fiber lasers• Sensing

4.

ABSOLUTE MAXIMUM RATINGSPARAMETER
Optical Output power (Gain switch operation)
Optical Output power (CW)LD Forward Current (CW)LD Reverse Voltage
TEC Drive Current
TEC Drive Voltage
Operation Temperature
Storage Temperature
Lead Soldering Temperature (5 s)

SYMBOL
Pp
PfIF
VRLD
ITEC
VTEC
Tc
Tstg
Tsld

1/5RATING
150
50250
224.30 to 60-40 to 85
230

UNITmWmWmA
VAVCCCQLD1a61-xx30GzWtt series
5.

C00282-02

OPTICAL AND ELECTRICAL CHARACTERISTICS(TLD = 25°C, unless otherwise specified)

PARAMETER
Optical pulse width
Peak output power
Peak Wavelength
Pulsed side-mode supression ratio

Pulsed spectral line width
Temperature Coefficient of p
Current Coefficient of p
Polarization Extinction Ratio
Monitor PD Current
Thermistor Resistance

SYMBOLPWPp

TEST CONDITION
gain switched operation
gain switched operation

pgain switched operation

SMSRP
dp/dTdp/dIPERImRthgain switched operation
gain switched operationCWCW
CW, Pf =30 mW
CW, Pf =30 mW
TLD = 25°C, B=3900 K

MIN
λp-5(*2)1550
9.5TYP50
100
λp(*1)

300.1
0.080.008
20200
10MAX
λp+5(*2)
1000
10.5UNIT
psmW
nm
dBnm
nm/Knm/mAdBAk(*1) Available peak wavelength is from 1018 to 1122 nm and 1040 to 1188 nm.
(*2) Tighter wavelength tolerance of +/- 1nm and +/- 0.5nm is available as an option. Refer to product part number according towavelength tolerance

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QLD1a61-xx30GzWtt series

C00282-026. PRODUCT PART NUMBER
6-1 General naming rule
QLD1a61-xx30GzWtt
Symbol

ItemConditionaMain wavelength range

1axx defines wavelength range in nm

xx

Main wavelength range

xx defines the last two digits of thewavelength range in nm

tt

Wavelength

Detailed specification of wavelengthzW

Wavelenth tolerance

wavelenth tolerance

Parameter
a=0: 10xx nm range
a=1: 11xx nm range
xx=30: 1030 nm range
xx=53: 1053 nm range
xx=64: 1064 nm range
xx=83: 1083 nm range(examples)
xx=63: 1063 nm
xx=32: 1032 nm(examples)
none:+/-5 nm
W:+/-1 nm
TW:+/-0.5 nm

6-2 Connector typePart Number
QLD1a61-xx30GzWtt
QLD1a61-xx30GzWtt11

Fiber Type
Polarization maintainingfiber

Fiber Diameter
900um
250um

6-3 Examples of product part number
Examples of product name
Part Number
Peak Wavelength (nm)1060nm +/-1nm
QLD1061-6430GW60
900um Fiber
1032nm +/-0.5nm
QLD1061-3030GTW3211
250um Fiber
1122nm +/-1nm
QLD1161-2230GW2211
250um Fiber
1083nm +/-5nm
QLD1061-8330G
900um Fiber

3/5Connector
FC/APC
Ferrule/APC

QLD1a61-xx30GzWtt series
7.

C00282-02

OUTLINE DRAWING(a) 900um fiber diameter and FC/APC connector type (QLD1a61-xx30GzWtt)(b) 250um fiber diameter and ferrule type (QLD1a61-xx30GzWtt11)

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QLD1a61-xx30GzWtt series
8.

C00282-02

PIN CONFIGURATION
No.

Description

No.

Description

1

TEC (+)

8

NC

2

Thermistor

9NC

3PD Anode10

Laser Anode4PD Cathode11

Laser Cathode

5

Thermistor

12

NC

6NC

13

Case Ground

7

NC

14

TEC (-)

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.
• RoHSThis product conforms to RoHS compliance related Directive (EU) 2015/863.

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

https://www.qdlaser.com

Copyright 2022-2024 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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