Abstract: A thermal compensator, for use in connection with arrayed waveguide grating (AWG) modules which are, in turn, utilized in conjunction with wavelength multiplexing and de-multiplexing within optical networks, is disclosed. The thermal compensator comprises a bow-shaped frame member and a central bar member. The bow-shaped frame member is characterized by a higher coefficient of thermal expansion than that of the central bar member such that the bow-shaped frame member can expand and contract at variable rates compared to that of the central bar member under certain temperature conditions. The bow-shaped frame member is adapted to be attached to a movable section of an athermal arrayed waveguide grating (AAWG) module such that the expansion and contraction movements of the bow-shaped member influence the movement of a movable section of the AAWG module in order to maintain the proper focus of the AAWG module across disparate temperature conditions.

Abstract: A thermal compensator, for use in connection with arrayed waveguide grating (AWG) modules which are, in turn, utilized in conjunction with wavelength multiplexing and de-multiplexing within optical networks, is disclosed. The thermal compensator comprises a bow-shaped frame member, a central bar member, and a screw. The bow-shaped frame member is characterized by a higher or great coefficient of thermal expansion (CTE) than that of the central bar member such that the bow-shaped frame member can expand and elongate at a greater rate than can the central bar member under hot temperature conditions, however, under cold temperature conditions, the rate of contraction of the bow-shaped member is effectively retarded by the slower rate of contraction of the central bar member.

Abstract: A thermal compensator, for use in connection with arrayed waveguide grating (AWG) modules which are, in turn, utilized in conjunction with wavelength multiplexing and de-multiplexing within optical networks, is disclosed. The thermal compensator comprises a bow-shaped frame member, a central bar member, and a screw. The bow-shaped frame member is characterized by a higher or great coefficient of thermal expansion (CTE) than that of the central bar member such that the bow-shaped frame member can expand and elongate at a greater rate than can the central bar member under hot temperature conditions, however, under cold temperature conditions, the rate of contraction of the bow-shaped member is effectively retarded by the slower rate of contraction of the central bar member.

Abstract: Athermal arrayed waveguide grating wavelength division multiplexers applicable to a relatively wide temperature range. One athermal arrayed waveguide grating wavelength division multiplexer includes a base board including an arrayed waveguide grating chip, wherein the base board and the arrayed waveguide grating chip are divided into a first portion and a second portion through at least one division plane; and a sliding deflection component positioned on the base board including a first end and a second end which are respectively fixed on the first portion and the second portion, the sliding deflection component including: a telescopic rod having a length that changes with temperature variation, a first sidewall and a second sidewall positioned at two ends of the telescopic rod, respectively, and a first deflection limiting piece fixed on one side of the telescopic rod.

Abstract: Athermal arrayed waveguide grating wavelength division multiplexers applicable to a relatively wide temperature range. One athermal arrayed waveguide grating wavelength division multiplexer includes a base board including an arrayed waveguide grating chip, wherein the base board and the arrayed waveguide grating chip are divided into a first portion and a second portion through at least one division plane; and a sliding deflection component positioned on the base board including a first end and a second end which are respectively fixed on the first portion and the second portion, the sliding deflection component including: a telescopic rod having a length that changes with temperature variation, a first sidewall and a second sidewall positioned at two ends of the telescopic rod, respectively, and a first deflection limiting piece fixed on one side of the telescopic rod.