Junping Mi, Hongyan Yu, Lijun Yuan, Shiyan Li, Mengke Li, Song Liang, Qiang Kan, Jiaoqing Pan. Distributed Bragg reflector laser (1.8 μm) with 10 nm wavelength tuning range[J]. Chinese Optics Letters, 2015, 13(4): 041401
- Chinese Optics Letters
- Vol. 13, Issue 4, 041401 (2015)
Fig. 1. Absorption lines of H 2 O CH 4
Fig. 2. (a) Schematic of two-section DBR laser structure. Inset, SEM image of butt-jointed interface between active region and passive waveguide; (b) PL spectra of the active region material and the passive region material. Bragg wavelength before tuning is also marked with a blue dot.
Fig. 3. Optical output power characteristics versus gain current at various temperatures. Bragg section current is 0 mA. Inset, threshold current dependence on the temperature.
Fig. 4. Output power and emitting wavelength as a function of gain current.
Fig. 5. Lasing spectrum as a function of temperature with fixed gain current of 80 mA.
Fig. 6. Tuning range obtained by only changing I DBR I gain
Fig. 7. Overlapped spectra of different wavelength when changing the current of the Bragg section only.
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