Single-Mode Pump Lasers

Modulight’s single-mode pump lasers combine efficient fiber coupling, wavelength stability, and high optical performance for fiber laser and fiber amplifier applications. Our portfolio covers key pump wavelengths from the 9xx to 14xx nm bands, such as 976 nm and 1480 nm, with solutions based on Fiber Bragg Grating (FBG) and Distributed Bragg Reflector (DBR) technologies, as well as configurations without wavelength stabilization. Fiber-coupled solutions are available in different power levels and package configurations, supporting applications such as pumping rare-earth-doped optical fibers, telecommunications, quantum technologies, sensing, and industrial applications.

At Modulight, we develop and manufacture high-performance single-mode pump laser modules with precise wavelength control, outstanding reliability, and flexible integration options. Leveraging our vertically integrated semiconductor laser technology, our pump lasers can be tailored to meet demanding OEM and research requirements.

What Are Single-Mode Pump Lasers?

Single-mode pump lasers generate light in a single spatial mode, allowing efficient coupling into single-mode optical fibers.

Key considerations when selecting a single-mode pump laser include:

Pump wavelength
Optical output power
Wavelength stability
Fiber coupling and mode field diameter
Package and integration requirements

Applications

Fiber Amplifiers

Pump lasers efficiently excite erbium-, ytterbium-, thulium-, or other rare-earth-doped fibers used in optical amplifiers for telecommunications, spectroscopy, and scientific instrumentation.

Fiber Lasers

Single-mode pumps provide the optical energy required for compact fiber laser architectures used in research, metrology, and precision manufacturing.

Quantum Technologies

Quantum systems often require exceptionally stable pump sources for generating or amplifying coherent optical signals. Stable wavelength and low noise are essential for quantum optics experiments and photonic quantum computing.

LiDAR and Remote Sensing

Fiber-based LiDAR systems rely on stable pump lasers to drive fiber amplifiers and pulsed laser sources with high efficiency and repeatability.

Optical Sensing

Distributed sensing, interferometry, fiber optic gyroscopes, and precision measurement systems benefit from low-noise pump sources with excellent wavelength stability.

Scientific Instrumentation

Pump lasers support numerous laboratory systems including spectroscopy, nonlinear optics, microscopy, and ultrafast laser systems.

See product examples

Laser solutions for pumping, seeding, and system integration

In addition to single-mode pump lasers, Modulight offers multimode pump lasers, single-frequency seed sources, and integrated optical subsystems for fiber laser and amplifier applications.

Single-mode pumps

Single-mode pump lasers are well suited for fiber laser and amplifier applications where efficient fiber coupling, wavelength stability, and high beam quality are important. As truly vertically integrated diode laser manufacturer, Modulight is capable of developing and optimizing semiconductor material that will deliver high efficiency and high brightness solutions for optical pumping. Modulight’s GaAs and InP materials and various laser configurations in 9xx–14xx bands are especially suitable for fiber laser pumping with different integration and output fiber variations.

Multimode pumps

Multimode pump lasers provide higher optical power for applications where high pump brightness and efficient power delivery are required. Modulight offers both conventional broad area (BA) and distributed Bragg reflector (DBR) multimode pump solutions across multiple wavelengths, power levels, and fiber configurations, including wavelength-stabilized solutions for demanding fiber laser and amplifier applications.

Seed lasers

Single-frequency diode lasers are used to injection seeding fiber lasers. Modulight offers DBR and DFB laser solutions across a broad wavelength range and in multiple package and fiber-coupling configurations. Our InP and GaAs baser semiconductor technologies enable laser sources with with precise wavelength control and stable optical performance for demanding applications.

Optical subsystems

If you want to focus on your fiber laser system and application development, you might want to check out Modulight’s optical subsystem offering for optical pumping. Modulight’s product platforms offer convenient solutions for integrating single laser or multiple lasers. Compact size, flexible interfaces, temperature control, and integrated driver and control options make them ideal building blocks for system development.

Why Choose Modulight Single-Mode Pump Lasers?

Precise Wavelength Control

Modulight’s fiber Bragg grating (FBG), distributed feedback (DFB), and distributed Bragg reflector (DBR) laser technologies provide highly stable emission wavelengths with minimal drift over temperature and operating conditions.

Excellent Fiber Coupling

Optimized optical design enables efficient coupling into polarization-maintaining or standard single-mode fibers.

High Reliability

Manufactured using Modulight’s vertically integrated semiconductor process, our pump lasers are designed for long operational lifetimes and demanding OEM environments.

OEM Tailoring

Wavelength
Output power
Fiber type
Fiber connector
Package configuration
Electrical interface
Cooling options

Integrated Control Electronics

Laser modules can include integrated drivers, temperature control, monitoring photodiodes, and communication interfaces for simplified system integration.

Product Examples

Modulight offers pump lasers across a broad wavelength range, including common pump wavelengths. Some examples of our products are listed in the below table.

Pump Wavelength	Typical Application	Datasheet
793 nm	Thulium-doped fiber lasers	• Contact Sales
808 nm	Solid state and specialty fiber lasers	• Contact Sales
915 nm	Ytterbium-doped fiber lasers and amplifiers	• Contact Sales
940 nm	Fiber lasers and amplifiers	• Contact Sales
976 nm	High-efficiency ytterbium pumping	• ML5213 – 976 nm, 400 mW FBG stabilized butterfly module • ML5122 – 976 nm, 250 mW FBG stabilized butterfly module • ML5138 – 976 nm, 150 mW FBG stabilized butterfly module • ML5156 – 976 nm, 100 mW FBG stabilized butterfly module
1480 nm	Erbium-doped fiber amplifiers (EDFAs)	• Contact Sales
Custom wavelengths	OEM-specific systems	• ML6600 – integratable multi-wavelength product platform