Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 880

The DOI matches its Crossref record.

Ge-on-Si laser operating at room temperature

Open access
Liu, Jifeng, Sun, Xiaochen, Camacho-Aguilera, Rodolfo, Kimerling, Lionel C., Michel, Jurgen·2010·Optics Letters

Abstract

Monolithic lasers on Si are ideal for high-volume and large-scale electronic-photonic integration. Ge is an interesting candidate owing to its pseudodirect gap properties and compatibility with Si complementary metal oxide semiconductor technology. Recently we have demonstrated room-temperature photoluminescence, electroluminescence, and optical gain from the direct gap transition of band-engineered Ge-on-Si using tensile strain and n-type doping. Here we report what we believe to be the first experimental observation of lasing from the direct gap transition of Ge-on-Si at room temperature using an edge-emitting waveguide device. The emission exhibited a gain spectrum of 1590-1610 nm, line narrowing and polarization evolution from a mixed TE/TM to predominantly TE with increasing gain, and a clear threshold behavior.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1364/ol.35.000679

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 880

Metadata

Authors
Liu, J., Sun, X., Camacho-Aguilera, R., Kimerling, L. C., & Michel, J.
Venue
Optics Letters
Published
2010-02-24
Volume
35
Issue
5
Pages
679
ISSN
  • 0146-9592 (ISSN-L)
  • 1539-4794
OpenAlex
W2058639886
Cited by
880
References
0
FWCI
78.74
Type
journal article
Language
en
Open access
bronze

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Ge-on-Si laser operating at room temperature. https://app.cochat.ai/papers/10.1364/ol.35.000679
The paper
Liu, J., Sun, X., Camacho-Aguilera, R., Kimerling, L. C., & Michel, J. (2010). Ge-on-Si laser operating at room temperature. Optics Letters. https://doi.org/10.1364/ol.35.000679

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.