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.