公开(公告)号：US20240332884A1

公开(公告)日：2024-10-03

申请号：US18732956

申请日：2024-06-04

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Haruki OGOSHI ,  Junji YOSHIDA ,  Yusuke INABA ,  Tatsuya KIMOTO ,  Masaki FUNABASHI ,  Seiji ICHINO ,  Naoya HOJO ,  Shigehiro TAKASAKA ,  Ryuichi SUGIZAKI ,  Nitidet THUDSALINGKARNSAKUL ,  Sanguan ANANTATHANASARN

IPC: H01S3/10 ,  H01S3/067 ,  H01S3/0933 ,  H01S3/30

CPC classification number: H01S3/10084 ,  H01S3/06754 ,  H01S3/0933 ,  H01S3/302 ,  H01S2301/02

Abstract: A light source includes: a seed light source configured to output incoherent seed light having a predetermined bandwidth; and a booster amplifier that is a semiconductor optical amplifier configured to optically amplify the seed light entered through a first end facet and output the amplified light through a second end facet. The booster amplifier has nL being set, which is a product of a refractive index n and a chip length L, so as to simultaneously suppress relative intensity noise (RIN) and ripple in the amplified light.

公开(公告)号：US20230231629A1

公开(公告)日：2023-07-20

申请号：US18180512

申请日：2023-03-08

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Haruki OGOSHI ,  Junji YOSHIDA ,  Yusuke INABA ,  Tatsuya KIMOTO ,  Masaki FUNABASHI ,  Seiji ICHINO ,  Naoya HOJO ,  Shigehiro TAKASAKA ,  Ryuichi SUGIZAKI ,  Nitidet THUDSALINGKARNSAKUL ,  Sanguan ANANTATHANASARN

IPC: H04B10/291 ,  H01S5/50

CPC classification number: H04B10/2916 ,  H01S5/5027 ,  H04B10/25

Abstract: A light source includes: a seed light source configured to output incoherent seed light with a predetermined bandwidth; and a booster amplifier that is a semiconductor optical amplifier configured to optically amplify the seed light input from a first facet, and output the amplified seed light as amplified light from a second facet, wherein the first facet and the second facet of the booster amplifier are subjected to a reflection reduction treatment, the booster amplifier is configured to operate in a gain saturated state, and relative intensity noise (RIN) and ripple are simultaneously suppressed in the amplified light.