Optical module having latching mechanism of cover with bush
AssigneeSumitomo Electric Device Innovations, Inc.
InventorTakeshi Okada
Life of this patent
Estimating the term…
Abstract
An optical module with an improved coupling portion to couple an optical device with an external fiber is disclosed. The coupling portion includes a stub to secure a coupling fiber in a center thereof, a bush to support the stub, a sleeve to receive the stub in a portion thereof and an external ferrule in another portion, and a sleeve cover to cover the sleeve. The coupling portion further includes a latch put between the bush and the cover by being hooked with both the bush and the cover. The latch electrically isolates the bush from the cover even when the bush and the sleeve cover are made of metal.
Claims15
An optical module having an optical axis, comprising:
- an optical device;
- a stub that secures a coupling fiber optically coupled with the optical device, the stub having a first portion and a second portion disposed along the optical axis;
- a metal bush having a first portion and a second portion disposed along the optical axis, the first portion of the metal bush receiving the first portion of the stub;
- a sleeve inserted between the second portion of the stub and the second portion of the metal bush;
- a metal sleeve cover that covers the sleeve and the second portion of the metal bush;
- and
- a latch made of electrically insulating material and inserted between the metal bush and the metal sleeve cover thereby electrically isolating the metal sleeve cover from the metal bush, the latch having a first portion and a second portion disposed along the optical axis, the first portion of the latch being hooked with the metal bush and the second portion of the latch being hooked with the metal sleeve cover,
- wherein the metal sleeve cover exposes the first portion of the latch.
An optical module having an optical axis and being installed within an optical transceiver, comprising:
- an optical device that installs a laser diode therein, the optical device having a metal package;
- a jointer having a metal cap and a cover, the metal cap covering the metal package and the metal cap including a ceiling and a skirt, the skirt receiving the metal cap therein;
- and
- a coupling portion including,
- a stub having a coupling fiber optically coupled with the laser diode in the optical device,
- a metal bush having a first portion and a second portion disposed along the optical axis, the first portion supporting the stub, the metal bush being electrically connected with the metal package of the optical device,
- a sleeve having a first portion and a second portion disposed along the optical axis, the first portion of the sleeve being inserted between the second portion of the stub and the second portion of the metal bush, the second portion of the sleeve receiving an external ferrule that optically couples with the coupling fiber in the stub,
- a metal sleeve cover that covers the sleeve and the second portion of the metal bush, the metal sleeve cover being made of electrically conductive material, and
- a latch made of electrically insulating material and inserted between the metal bush and the metal sleeve cover thereby electrically isolating the metal sleeve cover from the metal bush, the latch including a first portion and a second portion disposed along the optical axis, the first portion of the latch being hooked with the first portion of the metal bush and the second portion of the latch being hooked with the metal sleeve cover,
- wherein the metal sleeve cover exposes the first portion of the latch.
Dependencies are inferred from the claim text.