IdealPhotonics' 1360-1460nm DFB diode, based on an InGaAsP/InP strained superlattice and an electron beam lithography Bragg grating (±0.01nm precision), is a single-longitudinal-mode laser achieving a breakthrough wavelength stability of >70dB side-mode suppression ratio and ±0.001nm/℃. In specialized E+S band applications such as 1380nm water molecule detection, 1410nm methane remote sensing, and 1450nm biological tissue imaging, it combines 0.005cm⁻¹ spectral resolution with 10Gbps high-speed modulation capability. Its quantum efficiency is 50% higher than conventional devices, making it a next-generation cross-disciplinary solution for ultra-fine spectroscopy and high-speed optoelectronic integration.Employing InGaAsP/InP quantum wells and sub-angstrom precision Bragg gratings (±0.01nm), this chip achieves a side-mode suppression ratio of >70dB and a limiting wavelength stability of ±0.001nm/℃. In specialized wavelength applications such as 1380nm atmospheric water vapor detection (0.01ppb sensitivity), 1410nm greenhouse gas monitoring, and 1450nm biomedical imaging, it simultaneously possesses an ultra-high spectral resolution of 0.005cm⁻¹ and a high-speed modulation capability of 12Gbps. Its quantum efficiency exceeds 60%, making it the world's first revolutionary optoelectronic chip to achieve dual-mode operation of "molecular fingerprint recognition and high-speed data transmission."