The 793nm Fiber Coupled Laser is a single 400 W configuration for high-power Tm-doped fiber laser pumping. 793 nm sits on the Tm absorption line used for cross-relaxation pumping, and this module is the highest-power option in the 79x nm family.
Output — 400 W at 790–796 nm centre (793 nm typical), 5 nm spectral width
Fiber — 200 µm core / 220 µm cladding, bare fiber output (customisable), 1.5 m lead
Beam & protection — NA 0.22 at 95% power, 0.3 nm/°C drift, 1850–2100 nm return-light isolation
Drive — 10–12 A at 95 V across two 47.5 V groups, 40% electro-optical efficiency
Cooling — conduction cooled; 23–25 °C coolant temperature required
Tell us the application, target power and fiber interface, and we will confirm the matching model and release its full specification.
This 793 nm fiber-coupled semiconductor laser family combines compact packaging, high power density, stable optical output, and efficient heat transfer. Multiple power and fiber configurations support integration into pumping, sensing, interference, and research systems.
Key Features
High environmental adaptability
Efficient conductive heat dissipation
Compact, lightweight package design
High power density and stable optical output
Long operating life
Multiple power, fiber, and termination options
Custom configurations available
Applications
Mid-infrared laser pumping
Photoelectric detection
Laser illumination and interference
Biomedical systems
Scientific research
Key Parameters by Product Code
Each product image and dimension drawing is paired with the exact model specification shown in the same table. Select the required power, fiber core, and output termination before confirming the mechanical interface.
793-LXGX0400
Lumexis Product Code
793-LXGX0400
Nominal Output Power
Min 400; Typ -; Max – W
Fiber Core Diameter
200 µm
Output Termination
Bare fiber: Max Customizable
Product Image
Dimension Drawing
Technical Data
All values are taken from the supplied technical specification sheets. Where a source gives limits and a typical value, cells are labeled Min, Typ, and Max. Blank or unavailable entries are shown as -.
Optical Specifications
Parameter
Unit
793-LXGX0400 Min 400; Typ -; Max – W 200 µm Bare fiber: Max Customizable
Output Power
W
Min 400; Typ -; Max –
Center Wavelength
nm
Min 790; Typ 793; Max 796
Spectral Width
nm
Min -; Typ 5
NA within 95% Power
–
Min -; Typ -; Max 0.22
Wavelength Temperature Coefficient
nm/°C
0.3
Back-Reflection Isolation Range
nm
1850-2100
Electrical Specifications
Parameter
Unit
793-LXGX0400 Min 400; Typ -; Max – W 200 µm Bare fiber: Max Customizable
Operating Current
A
Typ 10; Max 12
Operating Voltage
V
95 (two groups, 47.5 V each; series connection supported)
Electrical-to-Optical Efficiency
%
40
Fiber Specifications
Parameter
Unit
793-LXGX0400 Min 400; Typ -; Max – W 200 µm Bare fiber: Max Customizable
Fiber Core Diameter
µm
200
Fiber Numerical Aperture
–
0.22
Fiber Cladding Diameter
µm
220
Fiber Length
m
Min 1.5; Max Customizable
Fiber Sheath Diameter
mm
Typ 0.9; Max Customizable
Fiber Output Termination
–
Bare fiber: Max Customizable
Notes
Photoelectric data are referenced to the test conditions stated in each source specification; most source sheets use 25°C.
Output power, fiber specifications, connector type, and fiber length can be customized where indicated.
Use appropriate electrostatic-discharge protection during transport, storage, and operation.
Clean the fiber end face before use and avoid contamination or damage.
Operate the laser with a constant-current supply and within the rated current, voltage, and power limits.
Provide effective cooling; the source sheets generally recommend a cooling-water temperature of 23-25°C.
Avoid direct eye or skin exposure to laser radiation and follow wavelength-appropriate laser-safety procedures.
Do not bend the fiber sharply; follow the minimum bend-radius guidance in the applicable source specification.
