发明名称 |
Light source apparatus and optical module included therein |
摘要 |
The present invention relates to a light source apparatus or the like provided with a structure that can block reflected return light also when an emitting end side of an optical isolator is a space. The light source apparatus comprises a light source section, a guide section, and an optical module. The optical module includes a collimator, an optical isolator, and an oblique-beam blocking section. The collimator outputs collimated light with a predetermined beam diameter as a forward propagating beam. The optical isolator is a polarization-independent optical isolator that introduces the collimated light from a first end and outputs this collimated light from a second end. The oblique-beam blocking section includes first and second optical components each having a window of a diameter D, and blocks light incident at a predetermined angle relative to an optical axis of the forward propagating beam out of a backward propagating beam, by separating the first and second optical components from each other by a predetermined distance. |
申请公布号 |
US8305689(B2) |
申请公布日期 |
2012.11.06 |
申请号 |
US20080248472 |
申请日期 |
2008.10.09 |
申请人 |
KAKUI MOTOKI;NAKAMAE KAZUO;TAMAOKI SHINOBU;SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
KAKUI MOTOKI;NAKAMAE KAZUO;TAMAOKI SHINOBU |
分类号 |
G02B27/10;G02B26/00;G02F1/03 |
主分类号 |
G02B27/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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