PCSEL Technology
A photonic crystal layer with tens of thousands of nano-holes enables ultra-low divergence vertical emission.
Disruptive Performance
Compared with edge-emitting lasers (EEL) and VCSELs, PCSEL redefines the resonator structure to overcome large far-field divergence and low single-mode power.
A periodic photonic crystal resonator enables two-dimensional large-area coherent oscillation, delivering high-power single-mode output with ultra-low divergence.
These features allow lens-free collimation, reducing system cost while improving stability.
Chip size
500 μm ~ 1000 μm
Far-field divergence
<2°
Continuous power
mW to W class
Low threshold current
<30 mA
Spectrum Coverage
PCSEL spans multiple material systems from visible to mid-infrared. With our self-developed 3D coupled-wave algorithm and patented PCSEL structures, we deliver high-performance devices at 905 nm, 940 nm, 1064 nm, 1310 nm, and 1550 nm, while conducting structural R&D for blue, red, and mid-infrared wavelengths.
Emission wavelength is primarily determined by the photonic crystal lattice constant and can be precisely tuned by adjusting it.
Beyond structural tuning, PCSEL adapts to GaN, GaAs, and InP substrates to extend into visible, near-IR, and mid-IR bands with watt to hundred-watt outputs.
Each wavelength targets distinct materials and application domains with differentiated advantages.
Spectrum Coverage
940nm
Our chips deliver an ultra-narrow divergence angle and circularly symmetric beam, enabling longer detection range than VCSEL lasers without collimation. Narrow linewidth and low thermal drift further improve signal-to-noise ratio.
Based on GC Light TS-PCSEL structures, we achieved watt-class continuous-wave output at 940 nm with a far-field divergence below 1°.
Spectrum Coverage
1064 nm
It can replace the seed source in traditional MOPA architectures. A single chip integrates both seed and amplifier functions for smaller size, lower cost, and higher efficiency.
Based on GC Light self-developed T-PCSEL patent structures, we achieved peak pulsed output above 20 W with far-field divergence below 1°. The spectral linewidth is only 0.1 nm, with side-mode suppression ratio SMSR > 40 dB.
PCSEL
High-speed optical links and inter-satellite networks
High-precision 3D imaging and ranging
Quantum computing and precision measurement
Scribing and micro/nano fabrication
Contact our engineering team for datasheets and application support.
