
Need a Stable 780nm Source for Fluorescence & NIR Imaging?
For researchers and OEM engineers developing fluorescence excitation systems, NIR fluorescence imaging instruments, and high‑sensitivity optical detection devices, a stable, high‑power, fiber‑delivered 780nm laser source is often critical to system performance and sensitivity. To meet this demand, we are pleased to introduce our FC780DL8 – 780nm 8W fiber‑coupled diode laser, designed to deliver robust output, clean spectral characteristics, and easy integration for demanding life science, analytical, and industrial optical systems.
As a well‑defined near‑infrared wavelength, 780nm occupies a key window for molecular excitation and deep‑tissue optical imaging. It matches the excitation peaks of many NIR‑responsive fluorophores and fluorescent proteins, reduces background autofluorescence compared to visible wavelengths, and provides improved tissue penetration for non‑invasive in vivo or ex vivo imaging. These inherent advantages make 780nm a preferred choice for developers building next‑generation fluorescence microscopy, small‑animal imaging, intraoperative navigation, and quantitative NIR analytical instruments.

Spectral width (FWHM)
6nm, supporting selective excitation with low crosstalk
Fiber core
105μm, NA 0.22, standard SMA905 connector
Fiber length
1m, jacket diameter 0.9mm for flexible routing
Wavelength temperature coefficient
0.3nm/°C for consistent performance
These characteristics make the FC780DL8 an ideal excitation engine for developers building NIR fluorescence imaging instruments, high‑throughput screening systems, fluorescence lifetime imaging (FLIM), and quantitative detection platforms.
780nm is recognized in optical bioanalysis for several key benefits:

01
Efficient fluorescence excitation
matches absorption bands of common NIR dyes, fluorescent probes, and quantum dots
02
Low photodamage
reduced phototoxicity for long‑duration live‑cell and live‑tissue imaging
03
Deep tissue penetration
suitable for non‑invasive imaging in skin, vasculature, organs, and small animals
04
Low background noise
minimizes endogenous tissue autofluorescence for higher contrast and sensitivity
Target Applications
The FC780DL8 is optimized for precision optical systems requiring stable 780nm illumination:
Fluorescence Excitation
Core light source for fluorescence microscopes, plate readers, Western blot imaging, and flow cytometry. Its 8W power supports high‑speed scanning, low‑concentration detection, and bright, uniform illumination across fields of view.
NIR Fluorescence Imaging Instrument Development
Ideal for building clinical and preclinical imaging systems, including small‑animal imaging, intraoperative fluorescence navigation, endoscopic imaging, and non‑invasive diagnostic devices. The fiber output enables flexible probe design and compact instrument layout.

Biomedical & Life Science Research
Used in two‑photon microscopy, single‑molecule detection, spectroscopy, and optical metrology. Stable power and wavelength stability support repeatable experiments and high‑quality data acquisition.
Industrial & Analytical Instrumentation
Suitable for machine vision, materials inspection, non‑destructive testing, laser sensors, and environmental monitoring. The rugged fiber package ensures consistent performance in production and field environments.

Advantages for OEM & System Integrators
The FC780DL8 780nm 8W fiber‑coupled diode laser provides a reliable, high‑performance foundation for fluorescence excitation and NIR imaging instrument development. Whether you are building laboratory research equipment, clinical diagnostic devices, or industrial optical systems, this module delivers the power, stability, and convenience needed to accelerate development and improve system performance.
For detailed specifications, sample inquiries, or customized configurations, please contact our sales team.
Plug‑and‑play integration
SMA905 connector and standardized fiber geometry reduce design cycles
Stable 8W output
supports high‑sensitivity detection and high‑throughput workflows
Low drive voltage
simplifies power supply design and improves energy efficiency
Controlled thermal drift
maintains wavelength stability during extended operation
Our address
RM1705,Building 2,Aoqiang Mansion, No. 6 Xiyuan 5th Rd, Hangzhou, China
Phone Number
+ 86 181 5840 0345
wp@brandnew-china.com










