Arrayed waveguide grating device and arrayed waveguide grating system using the same

An arrayed waveguide grating device comprising:

• an input unit including at least one input optical fiber, and a first coupler that is connected to said at least one input optical fiber;
• a transmission unit including a plurality of transmission optical fibers that are connected to said first coupler and arranged side by side on a reference plane, where an (n+1)th one of said transmission optical fibers is adjacent to an nth one of said transmission optical fibers, and has a length that is longer than a length of said nth one of said transmission optical fibers by a predetermined length amount, 1≤n≤N−1, N is a total number of said transmission optical fibers, the reference plane includes a red-shift adjustment region and a blue-shift adjustment region that are triangular, the red-shift adjustment region tapers along a direction from an Nth one of said transmission optical fibers to a first one of said transmission optical fibers, and covers a portion of each of said transmission optical fibers, and the blue-shift adjustment region tapers along a direction from said first one of said transmission optical fibers to said Nth one of said transmission optical fibers, and covers another portion of each of said transmission optical fibers;
• an adjustment unit including a red-shift heater and a blue-shift heater that are disposed over the reference plane, where said red-shift heater overlaps said portions of said transmission optical fibers in the red-shift adjustment region, and is configured to heat said portions of said transmission optical fibers in the red-shift adjustment region, and said blue-shift heater overlaps said portions of said transmission optical fibers in the blue-shift adjustment region, and is configured to heat said portions of said transmission optical fibers in the blue-shift adjustment region;
• and
• an output unit including a second coupler that is connected to said transmission optical fibers, and a plurality of output optical fibers that are connected to said second coupler.