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KPF Echelle Grating

KPF Echelle Grating


Table of Contents:


Final Report

Fabrication Process

Phase 3:  Replication


Second efficiency measurement run



Mosaic Size

"the ruled area for each half is 204mm x 409mm, and  the center gap is 15mm"

Blaze Angle Comments

DescriptionFile

Email from Sarah
(December 6, 2017)

Blaze_angle_email_Dec6_2017.pdf

Wavefront and Schedule Comments

Efficiency Results

DescriptionEmailFile

Email from Sarah
(November 8, 2017)

Gentlemen,

Attached, please find the efficiency results for the mosaic you ordered. For some
of wavelengths, the results are lower than what we quoted. We would like to discuss
this information with you to determine if re-replication is needed. Please let me know
when a convenience time to have this call will be.
There are time slots as early as tomorrow (11/9) and Friday (11/10).

Please let me know if you have any questions.

Thank you and best regards,
Sarah


Phase 2:  Submaster Alignment

DescriptionFile
Email from Sarah
(November 2, 2017)

Gentlemen,

We are moving along with the mosaic and have completed the substrate alignment.
Attached, please find the associated documents for this stage of your project. Our
Engineering team has gone ahead with the replication and I will have efficiency
results for the mosaic shortly.

An invoice will be issued for alignment within one week.  Please let me know if you have any questions.

Thank you and best regards,
Sarah

Alignment Report

Alignment Report - UC Berkeley Mosaic - 10202017.pdf

Order Number Change

DescriptionFile

From Sarah (September 28, 2017):

Gentlemen,

We currently have more than one mosaic project in process and as a result,
we have changed the part numbers on your order to clearly differentiate the projects.
The part numbers impacted are those for the substrate and the final replicated mosaic.
An updated order acknowledgment is attached.

Please let me know if you have any questions.

Thank you and best regards,
Sarah

Order 2692512 for UNIVERSITY of CALIFORNIA BERKELEY-2.pdf


Phase 1:  Substrate

DescriptionFile
Email from Sarah
(September 15, 2017)

Gentlemen,

We received the mosaic substrate in-house and it has been inspected and
measured. Attached, please find the associated documents for this stage of your project.
The material is Class 0 Zerodur, Extreme, as requested. 

An invoice will be issued for the substrate within one week.  
Please let me know if you have any questions.

Thank you and best regards,
Sarah

Substrate Inspection DocumentSubstrate inspection blank# 454915.pdf
Zygo Certification of ComplianceZygo product blank# 454915.pdf
Substrate Drawing53050ZD-0500-1.PDF
Shipping Crate



Purchasing

Technical Considerations Related to Substrate Choice

Zerodur phase change and CTE effects

Echelle Zerodur choice considerations correct CTE.pdf
Echelle Zerodur choice considerations correct CTE.pptx

Spatial Resolution of Mosaic

Check of echelle spatial resolution spec within KPF (impact on crosstalk):

Effect of Echelle Spatial Resolution Spec.pptx
Effect of Echelle Spatial Resolution Spec.pdf

Notes sent to RGL to clarify their spatial resolution spec (this is a term in our cross-talk analysis)

Clarification on Echelle Spatial Resolution Spec.pdf
Clarification on Echelle Spatial Resolution Spec.pptx

Response by RGL to above questions:

Clarification on Spatial Resolution - RGL response.pdf

Echelle Order Finalization Topics

(from August 12, 2014 weekly meeting)

Our requested specs

uc_berkeley_mosaic_specs_-_april_10_2014.pdf

MR263 Latest Quote

Quote Date:  September 9th, 2016


Quote Date: December 7th, 2015

SSL Sole-source Purchasing Form

SoleSource20120301_0[1]_SGibson_Echelle_grating.pdf

Schott Quote for Echelle Substrate Only (Class 0 Extreme)

Quotation 24023110-1.pdf


Grating Performance

Refresher on grating masters

    • MR263 = new master
    • MR160 = old master (now discontinued)

Penn State Echelle - Final RGL Report

Penn_State_echelle_report.pdf

Richardson R4 Mosaic Design Standards

(Sarah admitted this was an internal document she wasn't supposed to share)

Mosaic Design Standards_RevD-2.pdf

MR263 Information

Cosmetic map:mr263_cosmetic_map.pdf
Sub-aperture wavefront interferogramSUB-APERTURE WAVEFRONT INTERFEROGRAM.pdf

Efficiency Loss Due to Gap Size and Ruled Width

Echelle - efficiency effect of gap and ruled width.pdf

MR263 Ghost and Scatter Plots

  

MR263 Efficiency Plots

OrderGratingFileNote
77

MR263-1-3-1

From Sarah: "Please note that this grating has a

Protected Silver coating, so results with an aluminum

or gold coating will differ. Protected silver is NOT an

option for the mosaic as we do not have the means

to apply this coating type."

88MR263-1-1-1

102MR263-1-1-1

123MR263-1-1-1

154MR263-1-1-1



General

Shipping Container

unpacking_guidelines.pdf



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