Are you guys talking about the contactless probing solution? Sorry
about that if not.

A few years back, I heard that people used optoelectronic probe to do
[S] measurements without mechanical contacts? Is it getting more and
more practical and feasible?

Thanks
Fei
--- In mtt-11@yahoogroups.com, Dylan Williams <dylan@...> wrote:
>
> Hello Cory,
>
> If you are interested in power calibrations, I think that
Agilent,
> New Focus, Newport, U2t, perhaps other options exist. Some of these
might
> have phase calibrations as well, probably measured with an
oscilloscope.
>
> For magnitude and phase calibrations with mismatch
corrections
> traceable to electro-optic sampling, as far as I know, only NIST
and
> Anritsu have anything to offer. Our calibrations are quite
difficult and
> time consuming, so I think that Anritsu might be a better choice
for you.
>
> I hope that is helpful,
>
> Dylan
>
> At 01:01 PM 7/31/2007, you wrote:
>
>
> >Dylan,
> >
> >I contacted Anritsu, and they only support 1550nm for now, and
their list
> >price is about 25K. Do you know of any other vendors that are
selling
> >calibrated photodiodes (I think Agilent is only selling full
systems)? Can
> >you give me an order of magnitude estimate as to how much would it
cost
> >from NIST?
> >
> >Thanks,
> >Cory
> >
> >Dylan Williams
> ><<mailto:dylan%40boulder.ni>dylan@...
> >st.gov> To
> >Sent by: <mailto:mtt-11%40yahoogroups.com>mtt-11@yahoogroups.com
> >mtt-11@yahoogroup cc
> >s.com
> >Subject
> >Re: [mtt-11] What is the Most
> >07/31/2007 07:38 Practical Method to Add Optical
> >AM Capabilities to an 8510C?
> >
> >
> >Please respond to
> >mtt-11@yahoogroup
> >s.com
> >
> >
> >
> >Hello Cory,
> >
> >I believe that you are correct that the most inexpensive way to
> >proceed is to use a calibrated photodiode. I am not sure how much
Anritsu
> >sells their calibrated photodiodes for, but I would imagine that
would be
> >less expensive than purchasing a photodiode and calibration
directly from
> >NIST.
> >
> >Dylan
> >
> >At 07:25 PM 7/30/2007, you wrote:
> >
> >Hi,
> >
> >I am looking into what is the most practical method to add optical
> >capabilities to my 8510C. I need to be able to measure
communication
> >laser diodes and photodiodes over the wavelength range of 850nm to
> >1550nm (from 1Gbps to 10Gbps). I don't have the budget to purchase
> >an off the shelf lightwave component analyzer (especially since I
> >probably need more than one to cover this range), so I am looking
> >into adding calibrated laser sources and detectors to my existing
> >VNA. From what I gather the biggest challenge is to calibrate the
> >detector, and then that can be used to calibrate the source.
> >
> >I see many papers regarding calibrating photodetectors, but this
> >seems to be fairly involved. Is this the only practical option, or
> >does anyone sell reasonably priced calibrated photodetectors? So
> >far, I have only seen a single wavelength model by Anritsu.
> >
> >For the light source, is there anything good that is commercially
> >available, or am I best off building something myself. For home
> >built, is it better to directly modulate or use and external
> >modulator?
> >
> >Any feedback is appreciated.
> >
> >Thanks,
> >Cory
> >
> >-----------------------------------------------------
> >Dylan Williams <<mailto:dylan%40boulder.nist.gov>dylan@...>
> >NIST 818.01 <<mailto:dylan%40ieee.org>dylan@...>
> >325 Broadway [+1] (303)497-3138 (TEL)
> >Boulder CO 80305 USA [+1] (303)497-3970 (FAX)
>
><http://www.boulder.nist.gov/dylan/>http://www.boulder.nist.gov/dylan
/
> >-----------------------------------------------------
> >
> >
>
>
>
> -----------------------------------------------------
> Dylan Williams <dylan@...>
> NIST 818.01 <dylan@...>
> 325 Broadway [+1] (303)497-3138 (TEL)
> Boulder CO 80305 USA [+1] (303)497-3970 (FAX)
> http://www.boulder.nist.gov/dylan/
> -----------------------------------------------------
>