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DFB Laser Diode
IdealPhotonics' 760-1000nm DFB diode is a single-longitudinal-mode semiconductor light source based on the Bragg grating wavelength selection mechanism. Employing an AlGaAs/InGaAsP multi-quantum-well structure, it achieves sub-nanometer-level wavelength stability (±0.01nm/℃) and ultra-high side-mode suppression ratio (>50dB). It is irreplaceable in fields requiring precise wavelength control, such as atomic spectroscopy (Rb 780nm), biomedicine (808nm), and industrial processing (976nm). Its narrow linewidth (1MHz) is two orders of magnitude better than ordinary lasers.Based on sub-nanometer precision Bragg gratings (period error ±0.5nm) and strain-compensated quantum well structures, ultra-high single-mode purity (side-mode suppression ratio >55dB) and ultra-narrow linewidth (up to 100kHz) are achieved. This results in absolute technological dominance in fields requiring extreme spectral characteristics, such as atomic spectral precision locking (e.g., Rb 780.24nm±1MHz), biomedicine (808nm tissue optimization), and industrial sensing. Its wavelength stability (±0.005nm/℃) is two orders of magnitude higher than that of ordinary lasers, representing the highest level of spectral precision in semiconductor lasers.
IdealPhotonics' 1460-1530nm DFB diode, based on an InGaAsP/InP strained superlattice and a molecular beam epitaxy Bragg grating (±0.005nm accuracy) single-longitudinal-mode laser, achieves a side-mode suppression ratio of >72dB and sub-picometer wavelength stability of ±0.0008nm/℃. In special wavelength applications such as 1480nm fiber amplifier pumping and 1510nm atmospheric transmission window detection, it simultaneously achieves a performance breakthrough of 0.003cm⁻¹ spectral resolution and 15Gbps modulation rate, with a photoelectric conversion efficiency of 65%. This makes it a revolutionary optoelectronic device that combines "extreme spectral precision and telecom-grade transmission" capabilities.Employing InGaAsP/InP quantum wells and atomically precise Bragg gratings (±0.005nm), a side-mode suppression ratio of >72dB and sub-picometer stability of ±0.0008nm/℃ are achieved. In special wavelength applications such as 1480nm fiber amplification (20dB gain) and 1510nm free-space communication (atmospheric transmittance >95%), it simultaneously breaks through the physical limits of 0.003cm⁻¹ spectral resolution and 18Gbps modulation rate. Its 67% quantum efficiency and -160dB/Hz ultra-low noise redefine the performance boundaries of high-speed, high-precision optoelectronic chips.
IdealPhotonics' newly launched 1675-2332nm DFB diode, based on an ultra-long-wavelength laser with InGaAs/InP or GaSb/AlGaAsSb superlattices and nanoscale precision Bragg gratings (±0.1nm control), achieves a side-mode suppression ratio of >60dB and wavelength stability of ±0.01nm/℃. It breaks through 0.01cm⁻¹ spectral resolution in ultra-far-infrared applications such as 2000nm carbon dioxide detection (1ppb sensitivity), 2300nm methane monitoring, and 2330nm special molecule recognition. Its 15% quantum efficiency and -140dB/Hz noise characteristics fill the technological gap between traditional near-infrared and mid-infrared lasers.A novel long-wavelength single-mode emission method was achieved using an InGaAsSb/AlGaAsSb superlattice and a special Bragg grating. This method achieves both 0.05 cm⁻¹ spectral resolution and 10 mW output power in key applications such as 2.3 μm methane detection and 2.0 μm carbon dioxide monitoring. Its -145 dB/Hz noise characteristic overcomes the performance bottleneck of long-wavelength infrared lasers.
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