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US 8,477,822 B2Granted
Compact transistor outline packaged laser with optical monitoring function
AssigneeFuturewei Technologies, Inc.
InventorRongshong Miao
Life of this patent
Estimating the term…
Abstract
An apparatus comprising a header comprising a platform for attaching opto-electronic components, an optical element, a laser diode (LD) configured to emit an optical signal that passes through the optical element, and a cap affixed to the header such that the cap is coaxially aligned with the header, wherein the cap and header encase the optical element and the LD.
Claims21
An apparatus comprising:
- a header comprising a platform for attaching opto-electronic components;
- an optical element;
- a laser diode (LD) comprising a front facet, wherein the LD is configured to emit an optical signal from the front facet that passes through the optical element;
- and
- a cap affixed to the header such that the cap is coaxially aligned with the header, wherein the cap and header encase the optical element and the LD,
- wherein the optical element is configured to monitor or correct, or both, an optical characteristic of the optical signal.
3 more elements
An apparatus comprising:
- a header comprising a platform for attaching opto-electronic components;
- an optical element;
- a laser diode (LD) configured to emit an optical signal that passes through the optical element;
- and
- a cap affixed to the header such that the cap is coaxially aligned with the header, wherein the cap and header encase the optical element and the LD,
- wherein the optical element comprises a thin film filter, and
- wherein the temperature regulator is a micro-regulator configured regulate the temperature of the thin film filter without substantially affecting the temperature of the LD.
4 more elements
An apparatus comprising:
- a header comprising a platform for attaching opto-electronic components;
- an optical element;
- a laser diode (LD) configured to emit an optical signal that passes through the optical element;
- a cap affixed to the header such that the cap is coaxially aligned with the header, wherein the cap and header encase the optical element and the LD;
- a collimate lens encased by the cap and the header and positioned between the LD and the optical element, wherein the optical signal passes through the collimate lens before passing the optical element;
- and
- a focal lens encased by the cap and the header, wherein the optical element is positioned between the collimate lens and the focal lens, and wherein the optical signal passes through the focal lens after passing through the optical element.
4 more elements
A transistor outline (TO-can) package, comprising:
- a header;
- a cap coupled to the header and coaxially aligned to the header;
- a first lens mounted inside the cavity formed between the cap and the header, wherein the first lens is configured to collimate the optical signal;
- and
- a laser diode (LD) mounted inside the cavity formed between the cap and header, wherein the LD is configured to emit an optical signal that passes through the first lens.
2 more elements
An opto-electronic package, comprising:
- a header for mounting opto-electronic components;
- a cap affixed to the header such that the cap and the header are coaxially aligned;
- a laser diode (LD) configured to emit a first optical signal from a front facet and a second optical signal from a rear facet, and wherein the first optical signal and the second optical signal comprise substantially similar optical characteristics;
- a first photodiode (PD) configured to determine the second optical signal's wavelength;
- an optical element configured to filter the first optical signal, wherein the temperature of the optical element is regulated based on the optical element's performance;
- and
- a second PD configured to determine the first optical signal's wavelength as the first optical signal emerges from the optical element,
- wherein the optical element's performance is determined by comparing the first optical signal's wavelength with the second optical signal's wavelength, and
- wherein each of the LD, the first PD, the optical element, and the second PD are encased within a cavity formed between the cap and the header.
6 more elements
Dependencies are inferred from the claim text.