Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 388

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

Observation of amplitude squeezing in a constant-current–driven semiconductor laser

Machida, S., Yamamoto, Y., Itaya, Y.·1987·Physical Review Letters

Abstract

Electromagnetic fields with photon-number fluctuation reduced below the standard quantum limit have been generated in a constant-current--driven semiconductor laser. The generation is based on a new principle of high impedance suppression for pump-amplitude fluctuation in a highly saturated laser oscillator. The observed noise level is 7.3% (31% after correction for detection quantum efficiency) in power below the standard quantum limit in the entire frequency range between 350 and 450 MHz.

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 · 10.1103/physrevlett.58.1000

Cites

10 of 10 references verified0 citation errors · 0 not checkable

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

Cites

Show all 10 references

Cited by

See all 388

Metadata

Authors
Machida, S., Yamamoto, Y., & Itaya, Y.
Venue
Physical Review Letters
Published
1987-03-09
Volume
58
Issue
10
Pages
1000-1003
ISSN
0031-9007 (ISSN-L)
OpenAlex
W2057297164
Cited by
388
References
10
FWCI
40.91
Type
journal article
Language
en
Open access
closed

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: Observation of amplitude squeezing in a constant-current–driven semiconductor laser. https://app.cochat.ai/papers/10.1103/physrevlett.58.1000
The paper
Machida, S., Yamamoto, Y., & Itaya, Y. (1987). Observation of amplitude squeezing in a constant-current–driven semiconductor laser. Physical Review Letters. https://doi.org/10.1103/physrevlett.58.1000

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.