--Why Choose Our Laser Diode for B-end Applications?
1550nm DFB Technology: Distributed Feedback (DFB) structure ensures narrow spectral width (-3dB spectral width: 0.3~0.5nm) and stable wavelength, critical for high-precision range finders and optical transmitters.
Integrated Optical Isolator: Provides ≥30dB isolation, reducing signal interference and improving system reliability-essential for bulk deployment in optical networks.
Built-in InGaAs/PIN Monitor: Real time monitoring of output power (monitoring current: 100~1000uA at CW, If=Ith+20mA) simplifies system calibration for B-end users.
High Reliability: Operating temperature range of -20~70℃ and storage temperature of -40~85℃, ensuring durability in harsh industrial environments.
Industrial-Grade Specifications: Designed to meet strict electrical and optical standards, with slope efficiency ≥0.125 W/A (CW, If=Ith+20mA) and fast response (rise/fall time ≤120ps), suitable for high-speed optical transmitter applications.
Applications
Range Finders: Provides stable 1550nm wavelength for precise distance measurement in industrial and aerospace applications.
Optical Transmitters: Supports 2.5Gb/s data rate for digital and analog signal transmission in fiber optic communication systems.
Optical Bidi Modules & Transceivers: Integrated isolator and monitor diode simplify module design for telecom and datacom equipment manufacturers.
Procurement Support
Wholesale Pricing: Competitive rates for bulk orders (contact us for a custom quote based on quantity).
Bulk Order Flexibility: Minimum order quantity (MOQ) starts at 10 pieces, with discounts for orders ≥100 units.
ODM Services: Customize parameters (power, wavelength, connectors) to match your specific requirements.
Fast Lead Time:
1~100 pieces: 14 days
101~1000 pieces: 26 days
1001~10000 pieces: 35 days
Larger quantities: Negotiable
Packaging: Single package size 20*15*4 cm, gross weight 0.050 KG-optimized for safe transportation in bulk.
Shipping Method: UPS/DHL/FedEx/According to your requested method...
Specification
Absolute Maximum Ratings (Tc=25℃)
Parameter
Symbol
Min
Type
Max
Unit
Parameter
Symbol
Min
Type
Max
Unit
Reverse Voltage(LD)
Vr(LD)
-
-
2
V
Forward Current(LD)
If(LD)
-
-
100
mA
Reverse Voltage(MPD)
Vr(PD)
-
-
15
V
Forward Current(MPD)
If(PD)
-
-
2
mA
Storage Temperature
Tstg
-40
-
+85
℃
Operating Temperature
Topr
-20
-
70
℃
Lead Soldering Temperature/Time
Ts
-
260/10 or 360/5
-
℃/S
Transmitter Optical and Electrical Characteristics (Tc=25℃)
Parameter
Symbol
Min
Type
Max
Unit
Test Condition
Threshold Current
Ith
3
15
mA
Forward Voltage
Vop
1.1
1.5
V
CW,If=Iop
Optical Output Power
Pf
5.0
8.0
mW
CW,If=45mA
Center Wavelength
λc
1540
1550
1560
nm
CW,Po = Pf
Rise time/Fall time (20-80%)
Tr/Tf
120
pS
If=Ith,Po=Pf 50 Ohm
Isolation
ISO
30
dB
Monitor Current
Im
100
1000
uA
CW, If=Ith+20mA
Capacitance
CPD
10
20
PF
VRD=5V,F=1MHz
Slope Efficiency
SE
0.125
W/A
CW, If=Ith+20mA
Bandwidth
BW
2.5
GHz
Dark Current
Id
100
nA
VRD=5V
Spectral Width(-3dB)
Δλ
0.3
0.5
nm
CW, If=Ith+20mA
Relative intensity noise
Rin
-130
dB/Hz
Tracking Error
TE
-1.5
1.5
dB
CW, Im=Constant & If=Ith+20mA
Side Mode Suppression Ration
SMSR
30
dB
CW, If=Ith+20mA
Company Introduction
About Us
Established in 2004 and headquartered in the Xiang'an Park of Xiamen Torch High-Tech Industrial Zone, Fujian, China, Xiamen Bely Information Technology Co., Ltd. is a high-tech enterprise fully dedicated to the R&D, manufacturing, and sales of active and passive optical components and network equipment for fiber-optic communications. Our wholly-owned subsidiary, Bely (Nanping) Technology Co., Ltd., is located in Phase III of the Wuyi New Area High-Tech Industrial Park, Nanping, Fujian.
Guided by the philosophy of "people first, continuous innovation," we maintain close collaboration with leading universities and research institutes-including the Fujian Institute of Research on the Structure of Matter (CAS), Xiamen University, Shenzhen University, Fuzhou University, and the Mindu Innovation Laboratory (Fujian Opto-Electronic Information Science & Technology Innovation Laboratory). Our team comprises long-standing optical-device experts and R&D engineers. The company has obtained ISO 9001 Quality Management, ISO 14001 Environmental Management, and IATF 16949 Automotive Quality Management certifications. In terms of digitalization, we have deployed Kingdee Cloud·Cosmic, Kaimu eNORM PLM, and Manufacturing Execution Systems (MES).
With more than 100 invention, utility-model, and design patents, we have been honored as an Xiamen Innovation (Pilot) Enterprise, Xiamen Leading "Technology Giant," Xiamen "Specialized, Refined, Distinctive, and Novel" Enterprise, National High-Tech Enterprise, and National Science & Technology SME.
We operate state-of-the-art chip-packaging and automated fiber-coupling lines, leveraging advanced domestic and international processes to deliver high-quality, cost-effective optoelectronic communication components. Our products serve applications in broadcasting, mobile & satellite communications, broadband & data centers, security & surveillance, instrumentation, autonomous driving, and healthcare. They have been qualified into the supply chains of Huawei, ZTE, and Nokia, and have exported to worldwide. The Belycomm brand enjoys a strong reputation in the global market.
The main product series:
Active Devices: PUMP, CWDM, DWDM, Butterfly laser and Box package laser
TO-CAN: TO18, TO25, TO46, TO56, TO60, TO-5, TO-9
Mobile communication device: 3G/4G/5G WDM
Analog active devices: CATV, IPTV, CDMA, RFoG
TOSA/ROSA/BOSA for ONU/OLT and SFP module
Passive Devices: PWDM, PLC, MUX/DEMUX, Coupler, TAP
Sensing components: LiDAR, Gas detection, Laser ranging
