Science > Physics > High Power CW Laser @1310nm with spectral width of 5-10nm required
| Topic: |
Science > Physics |
| User: |
"OpticsYogi" |
| Date: |
11 May 2006 06:31:27 PM |
| Object: |
High Power CW Laser @1310nm with spectral width of 5-10nm required |
Dear All OPtics friends:
I am looking to buy few Laser diodes at center wavelength of 1310nm
with ex-fiber power to be around 10 to 100mW. The Fabry Perot geometry
is not something that I wish to have due to multi peaks present due to
FP cavity effects. I wish to have a single peak which is broad enough
to get the 3dB spectral width in the range of 2 to 10nm.
Could you please help me giving me contact details of the manufacturere
of such a device?
Many thanks in advance.
Regards,
OpticsYogi
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| User: "john" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
11 May 2006 07:59:27 PM |
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"OpticsYogi" <ajjux@hotmail.com> wrote in message
news:1147390287.162326.239920@q12g2000cwa.googlegroups.com...
Dear All OPtics friends:
I am looking to buy few Laser diodes at center wavelength of 1310nm
with ex-fiber power to be around 10 to 100mW. The Fabry Perot geometry
is not something that I wish to have due to multi peaks present due to
FP cavity effects. I wish to have a single peak which is broad enough
to get the 3dB spectral width in the range of 2 to 10nm.
Could you please help me giving me contact details of the manufacturere
of such a device?
Many thanks in advance.
Regards,
OpticsYogi
That seems to be extremely narrow for a laser diode.
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| User: "AES" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
12 May 2006 03:49:22 PM |
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In article <1147390287.162326.239920@q12g2000cwa.googlegroups.com>,
"OpticsYogi" <ajjux@hotmail.com> wrote:
Dear All OPtics friends:
I am looking to buy few Laser diodes at center wavelength of 1310nm
with ex-fiber power to be around 10 to 100mW. The Fabry Perot geometry
is not something that I wish to have due to multi peaks present due to
FP cavity effects. I wish to have a single peak which is broad enough
to get the 3dB spectral width in the range of 2 to 10nm.
Could you please help me giving me contact details of the manufacturere
of such a device?
Many thanks in advance.
Regards,
OpticsYogi
Willing to consider ASE fiber lasers in this range?
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| User: "Charles Manoras *.*" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
14 May 2006 10:49:24 AM |
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"AES" <siegman@stanford.edu> wrote
Willing to consider ASE fiber lasers in this range?
Interesting suggestion, but how about AES fiber lasers? ;-)
Seriously what ASE stand for?
I know next to nothing concernng fiber lasers but I am
always willing to learn.
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| User: "AES" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
14 May 2006 05:38:29 PM |
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In article <126elp6o4k7jk11@corp.supernews.com>,
"Charles Manoras" <*.*> wrote:
"AES" <siegman@stanford.edu> wrote
Willing to consider ASE fiber lasers in this range?
Interesting suggestion, but how about AES fiber lasers? ;-)
Seriously what ASE stand for?
I know next to nothing concernng fiber lasers but I am
always willing to learn.
The excited ("pumped up") atoms in a laser both provide gain for any
optical signals inside or sent into the laser within the laser gain
bandwidth through what's called "stimulated emission", and also
spontaneously emit incoherent light from the same atoms across the full
amplification bandwidth of the laser transition, through what's known as
"spontaneous emission" (aka fluorescence).
This spontaneous emission is relatively weak -- it's essentially a noise
source inside the laser -- but if the laser has enough gain (which in
practice means if it's long enough), this spontaneous emission will be
strongly amplified by the gain mechanism as the spontaneously emitted
light passes down the long laser; and the laser will squirt significant
amounts of _amplified spontaneous emission_ (ASE) out of one or both
ends, even with no input signals and no end mirrors to provide feedback.
Fibers are a natural for this, since they're naturally very long, can
have very high gain, and automatically trap the amplified spontaneous
emission within the fiber. Commercial lasers of this type are available
for use in optical tomography and other applications. One emerging
commercial source (look at their "Products" page) is
<http://www.multiwavephotonics.com/>
which I know about because I have a connection with them; but there are
others. (You are talking commercial prices here, e.g. multiple K$.)
Mother Nature also makes ASE lasers: there are huge ASE lasers out in
space, and in the atmosphere of Mars, mirrorless of course, formed by
immense gas clouds optically pumped by the light of nearby stars.
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| User: "Charles Manoras *.*" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
15 May 2006 08:54:48 AM |
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"AES" <siegman@stanford.edu> wrote
Mother Nature also makes ASE lasers: there are huge ASE lasers out in
space, and in the atmosphere of Mars, mirrorless of course, formed by
immense gas clouds optically pumped by the light of nearby stars.
nearby stars? which ones besides the sun?
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| User: "AES" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
15 May 2006 09:56:56 AM |
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In article <126h557dqjt0dac@corp.supernews.com>,
"Charles Manoras" <*.*> wrote:
"AES" <siegman@stanford.edu> wrote
Mother Nature also makes ASE lasers: there are huge ASE lasers out in
space, and in the atmosphere of Mars, mirrorless of course, formed by
immense gas clouds optically pumped by the light of nearby stars.
nearby stars? which ones besides the sun?
Mother Nature¹s natural masers & lasers
Astrophysical masers (1965)
Molecular maser action in interstellar hydrogen clouds
Pumped by UV radiation from nearby stars
OH (1670 MHz), H20 (2.2 GHz), SiO2 (4.313 GHz)
Brightness temperatures 1015 K; immense power outputs
CO2 lasers in planetary atmospheres (1976)
10 £gm amplification in atmospheres of Mars and Venus
Directly pumped by sunlight; low gains
Hydrogen recombination masers (19941996)
Hydrogen clouds near MWC 349A & other stars (?)
ASE at 850 £gm, 450 £gm, 169 £gm, 89 £gm, 52.5 £gm
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| User: "Ousama" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
15 May 2006 09:19:50 AM |
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I think most here have missed entirely what this person is looking for.
The ASE sources most are linking to are the 1550nm or 1060nm versions.
To get a 1310 ASE you need a praseodymium doped Fluoride based fiber.
This type of light source is very difficult to find so I can only
imagine the price on it.
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| User: "Jan Panteltje" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
15 May 2006 03:52:27 AM |
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On a sunny day (Sun, 14 May 2006 15:38:29 -0700) it happened AES
<siegman@stanford.edu> wrote in
<siegman-27154B.15382814052006@news.stanford.edu>:
Mother Nature also makes ASE lasers: there are huge ASE lasers out in
space, and in the atmosphere of Mars, mirrorless of course, formed by
immense gas clouds optically pumped by the light of nearby stars.
So now it is up to Darth Vader to put two huge mirrors in space at the
right position, to fry the planet.
The Death Star.
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| User: "Anthony Cook" |
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| Title: Re: High Power CW Laser @1310nm with spectral width of 5-10nm required |
18 May 2006 08:13:01 AM |
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On 11 May 2006 16:31:27 -0700, "OpticsYogi" <ajjux@hotmail.com> wrote:
Dear All OPtics friends:
I am looking to buy few Laser diodes at center wavelength of 1310nm
with ex-fiber power to be around 10 to 100mW. The Fabry Perot geometry
is not something that I wish to have due to multi peaks present due to
FP cavity effects. I wish to have a single peak which is broad enough
to get the 3dB spectral width in the range of 2 to 10nm.
Could you please help me giving me contact details of the manufacturere
of such a device?
Many thanks in advance.
Regards,
OpticsYogi
You could try Superluminescent Diodes. At 1310 nm, you can get about
10-20 mW out, but the bandwidth is going to be around 25-30 nm.
http://www.qphotonics.com/home.php?cat=12
http://www.superlumdiodes.com/
http://www.amonics.com/SLED%20benchtop.HTM
http://www.denselight.com/SLED_DL_CS_catalogv1.htm
http://www.exalos.com/content.php?id=12
Anthony
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