| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical modulator capable of suppressing breaking and cracking of a relay substrate.SOLUTION: In an optical modulator 1, relay electrodes 52A, 52B, 52C, and 52D are arranged side by side on a relay substrate 51 and the relay substrate 51 is divided among the relay electrodes 52A, 52B, 52C, and 52D. By dividing the relay substrate 51 into a plurality of relay substrates 51A, 51B, 51C, and 51D like the above, thermal stress on the relay substrate 51 can be reduced, enabling breaking and cracking of the relay substrate 51 to be suppressed. |
