QLD1a61-xxyyCzWtt series
1m-range 10-30mW DFB Laser BFY Module under CW Operation

C00280-02 March 2024

1. DESCRIPTIONThe QLD1a61-xxyyCzWtt 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• CW operation

3.

APPLICATIONS• Seeder for fiber lasers• Sensing

4.

ABSOLUTE MAXIMUM RATINGSPARAMETER
Optical Output power (CW)LD Forward Current (CW)LD Reverse Voltage
TEC Drive Current
TEC Drive Voltage
Operation Temperature
Storage Temperature
Lead Soldering Temperature (10 s)

SYMBOLPf 30mW version
Pf 10mW version
IF 30mW version
IF 10mW version
VRLD
ITEC
VTECTc
Tstg
Tsld

1/5

RATING
5030
250
150
224.3
0 to 60-40 to 85
260

UNITmWmWmAmA
VAV
CCCQLD1a61-xxyyCzWtt series
5.

C00280-02

OPTICAL AND ELECTRICAL CHARACTERISTICS

5-1. 10mW verison: QLD1a61-xx10CzWtt(TLD = 25°C, unless otherwise specified)
PARAMETER
Peak Wavelength
Temperature Coefficient of p
Current Coefficient of p
Fiber Output Power
Threshold Current
Operation Current
Operation Voltage
Sidemode Suppression Ratio
Polarization Extinction Ratio
Monitor PD Current
Thermistor Resistance

SYMBOLTEST CONDITION

pCW, Pf =10 mWdp/dTdp/dIPfIthIop
Vop
SMSR
PERImRthCWCWCWCWCW, Pf =10 mWCW, Pf =10 mW
CW, Pf =10 mW
CWCW, Pf =10mW
TLD = 25°C, B=3900K

MIN
λp-5(*2)
1015
109.5

TYPλp(*1)

0.08
0.008
1550
1.4
40
20
100
10MAX
λp+5(*2)
80
1.8
1000
10.5UNITnm
nm/K
nm/mAmW
mA
mA
VdBdB
Ak

(*1) Available peak wavelength is from 1018 to 1122 nm and 1140-1188 nm.
(*2) Tighter wavelength tolerance of +/- 1nm and +/- 0.5nm is available as an option. Refer to product part number according towavelength tolerance

5-2. 30mW verison: QLD1a61-xx30CzWtt(TLD = 25°C, unless otherwise specified)
PARAMETER
Peak Wavelength
Temperature Coefficient of p
Current Coefficient of p
Fiber Output PowerThreshold Current
Operation Current
Operation Voltage
Sidemode Suppression Ratio
Polarization Extinction Ratio
Monitor PD Current
Thermistor Resistance

SYMBOLTEST CONDITIONp

CW, Pf =30 mWdp/dTdp/dI
Pf
IthIop
Vop
SMSR
PER
Im
RthCW
CW
CW
CW
CW, Pf =30 mW
CW, Pf =30 mW
CW, Pf =30 mW
CW, Pf =30 mW
CW, Pf =30 mW
TLD = 25°C, B=3900 KMIN
λp-5(*2)
30
1550
9.5

TYP
λp(*1)

0.08
0.008
20150
1.7
40
20200
10MAX
λp+5(*2)
200
2.0
1,000
10.5UNITnm
nm/Knm/mAmWmAmA
VdBdB
Ak

(*1) Available peak wavelength is from 1018 to 1122 nm and 1140-1188 nm.
(*2) Tighter wavelength tolerance of +/- 1nm and +/- 0.5nm is available as an option. Refer to product part number according towavelength tolerance

2/5

QLD1a61-xxyyCzWtt series
6.

C00280-02

PRODUCT PART NUMBER

6-1 General naming rule
QLD1a61-xxyyCzWtt
Symbol

ItemConditiona

Main wavelength range

1axx defines wavelength range in nm

xx

Main wavelength range

xx defines the last two digits of thewavelength range in nm

yy

Output power

Minimum output powertt

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)
yy=10: 10 mW
yy=30: 30 mW
xx=63: 1063 nmxx=32: 1032 nm(examples)
none:+/-5 nm
W:+/-1 nm
TW:+/-0.5 nm

6-2 Connector typePart Number
QLD1a61-xxyyCzWtt
QLD1a61-xxyyCzWtt11

Fiber Type
Polarization maintaining
fiber

Fiber Diameter
900um
250um

6-3 Examples of product part number
Examples of product name
Part Number
Peak Wavelength (nm)1060nm +/-1nm, 10mW
QLD1061-6410CW60
900um Fiber
1032nm +/-0.5nm, 30mW
QLD1061-3030CTW3211
250um Fiber
1122nm +/-1nm, 30mW
QLD1161-2230CW2211
250um Fiber
1083nm +/-5nm, 30mW
QLD1061-8330C
900um Fiber

3/5Connector
FC/APCFerrule/APC

QLD1a61-xxyyCzWtt series
7.

C00280-02

OUTLINE DRAWING(a) 900um fiber diameter and FC/APC connector type (QLD1a61-xxyyCzWtt)(b) 250um fiber diameter and ferrule type (QLD1a61-xxyyCzWtt11)

4/5

QLD1a61-xxyyCzWtt series
8.

C00280-02

PIN CONFIGURATION
No.

Description

No.

Description

1

TEC (+)

8

NC

2

Thermistor

9

NC

3

PD Anode

10

Laser Anode4

PD Cathode11

Laser Cathode

5

Thermistor

12

NC6NC

13

Case Ground

7NC

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.

5/5