Bidirectional wavelength tuning device for optical Bragg gratings

A bidirectional wavelength tuning device for optical Bragg gratings in the technical field of optical fiber communication comprises a bottom board, an upper clamping plate, a lower clamping plate, a height adjuster and a clamp, wherein the bottom board is positioned between the upper clamping plate and the lower clamping plate which are fixedly connected with each other, the height adjuster is disposed on the upper clamping plate and connected with the clamp, and the clamp is clamped in the middle of the bottom board. The bidirectional wavelength tuning device can realize tuning of long wavelength and short wavelength for optical Bragg gratings in the same structure, is low in cost, simple in assembly and easy in fabrication.