IdealPhotonics' 700-740nm DBR diode, based on an AlGaInP/GaAs material system distributed Bragg reflector laser, achieves narrow linewidth (<0.1nm) single-mode output using a multi-quantum-well active region and a high-order grating (period accuracy ±0.2nm). It exhibits excellent wavelength stability of ±0.02nm/℃ in specific wavelength band applications such as 730nm biofluorescence excitation and 710nm industrial detection. Its combined performance of a 30dB side-mode suppression ratio and 50mW output power fills a technological gap in short-wavelength tunable semiconductor lasers.Employing AlGaInP/GaAs multiple quantum wells and nanoscale high-order gratings (±0.1nm accuracy), this laser achieves an ultra-narrow linewidth of <0.1nm and excellent wavelength stability of ±0.02nm/℃. In specialized visible light applications such as 730nm biofluorescence labeling and 715nm industrial sorting, it combines a 35dB side-mode suppression ratio with 80mW output power. Its unique discrete "gain region-grating region" design expands the tuning range by three times compared to traditional DFB lasers, making it the preferred light source for short-wavelength precision optical detection.