Control of carrier relaxation for suppression of optical gain damping by using Well-in-Well structure

Higa, Yasutaka; Sorimachi, Mikio; Nishinome, Takuya; Miyamoto, Tomoyuki

doi:10.1109/nusod.2011.6041202

Search citation statements

Order By: Relevance

Paper Sections

Select...

Concept and Analysis Of Wwell1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2011

Publication Types

Select...

Other1

Relationship

Self Cite1

Independent0

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We composed the analysis model for this simulation, and investigated the carrier relaxation time and modulation bandwidth [3]. Figure 2 shows the dependence of electron relaxation time on outer well width at WWell structure.…”

Section: Concept and Analysis Of Wwellmentioning

confidence: 99%

The reduction of dumping factor at well-in-well quantum well lasers

Higa

Sorimachi

Nishinome

et al. 2011

IEEE Photonic Society 24th Annual Meeting

Self Cite

View full text Add to dashboard Cite

A quantum well design for controlling of the carrier relaxation process and reducing of the gain damping effect was investigated for improvement of high speed direct modulation semiconductor lasers. The proposed Well-in-Well structure decreases the carrier relaxation time into an active well by carefully designed wave function which relates to the LO phonon scattering rate. The decrease of relaxation time and the increase of modulation bandwidth was analyzed numerically. The reduction of damping factor γ was also demonstrated by experimental measurement of the relative intensity noise spectrum.

show abstract

Section: Concept and Analysis Of Wwellmentioning

confidence: 99%