Optical module
AssigneeLumentum Japan, Inc.
InventorsSachiko Mizuseki, Hideki Sato
Life of this patent
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Abstract
An optical module for transmitting an optical signal may include a circuit board on which electronic components are disposed, a high-frequency component that is disposed on a main surface of the circuit board and operates at a frequency equal to or higher than a predetermined reference value according to a frequency of the optical signal, a low-frequency component that is disposed on another main surface of the circuit board so as to overlap at least partly with the high-frequency component in a plan view and operates at a frequency less than the reference value, and an electromagnetic wave absorber that is disposed on an upper surface of the low-frequency component.
Claims20
An optical module, comprising:
- a circuit board on which electronic components are disposed;
- a high-frequency component that is disposed on a main surface of the circuit board and operates at a frequency equal to or higher than a predetermined reference value according to a frequency of an optical signal,
- wherein a first surface of the high-frequency component is in contact with the main surface of the circuit board;
- a low-frequency component that is disposed on another main surface of the circuit board so as to overlap at least partly with the high-frequency component in a plan view and operates at a frequency less than the reference value,
- wherein a first surface of the low-frequency component is in contact with the other main surface of the circuit board;
- and
- an electromagnetic wave absorber that is disposed on a second surface of the low-frequency component that is opposite the first surface of the low-frequency component,
- wherein another electromagnetic wave absorber is not disposed on a second surface of the high-frequency component that is opposite the first surface of the high-frequency component.
Dependencies are inferred from the claim text.