OMEGA EP beamlines looking south [2/22/08]

First EP Frequency Conversion Crystal (FCC) at the tuning
station [9/13/07]

Tiled grating assemblies in the GCC [11/31/07]

The EP laser looking north [10/05/07]

Off-axis parabola inserter manipulator installation [8/28/07]

OMEGA EP beamlines [8/14/07]

OMEGA EP beamlines [8/14/07]

Four tiled gating assemblies in the GCC [8/09/07]

Using the CMM to measure submicron movement in the
off-axis parabola manipulator [8/08/07]

Off-axis parabola manipulator [7/02/07]

Parabola alignment diagnostic [06/21/07]

GCC beam blocks [06/20/07]

Installing the first deformable mirror [6/11/07]

The first deformable mirror installed [6/11/07]

Tiled Grating test stand [06/01/07]

Beamlines [5/23/07]

Coating the off-axis parabola [5/18/07]

Working on beamline 3 [4/23/07]

Installing beamline 2 polarizer [3/30/07]

Installing beamline 2 polarizer into its frame [3/23/07]

Inside of beamline 3 [3/23/07]

Aligning the short pulse diagnostic package [3/23/07]

Preparing framework for the SPDP table [2/08/07]

Inside the IR viewer, showing imaging of the cross-hair
pattern [1/18/07]

Working in the OMEGA EP inserter [12/12/06]

OAPI main carriage assembled [12/07/06]

Beamlines [11/28/06]

Aligning beam in beamline 4 [11/28/06]

Tiled Grating Assembly [10/27/06]

Tiled Grating Assembly [10/27/06]

Beamline 4 periscope installation [8/24/06]

Beamlines [7/24/06]

Beamline 1, looking north [7/26/06]

Beamlines [6/26/2006]

Measuring the peak anti-reflective wavelength on a PEPC
window [5/11/06]

Deformable Mirror Assembly [2/05]

Beamlines [1/05/06]

Beamlines [12/02/05]

Optical components for the injection and amplification portions of an OMEGA EP beamline.
Beamlines 3 and 4 do not have short-pulse capability and therefore do not require POL2.

The upper of two four-grating pulse compressors is shown inside the GCC. The lower
compressor is identical. The output of each compressor is directed to a beam combiner
where the pulses are coaxially aligned. A target chamber selection mirror (not shown)
diverts pulses to either target chamber. Alternatively, the two pulses can be used to
simultaneously backlight and sidelight an OMEGA EP target.

Illustration of the inner workings of the GCC shows the locations of the TGA's, G1 to G4,
and the target chamber selection mirror. The upper and lower compressors for Beams 1
and 2 are aligned atop one another. After pulse compression, the co-aligned beams reflect
off the selection mirror and exit the GCC, propagating to the target chamber of choice.
Diagnostic beams exit the GCC via the SPDP output periscope.

Integrated interferometers (one shown) in the GCC allow for the precision alignment of the
tiles in each tiled-grating assembly for each pulse compressor. Insertable CAM's located
before TGA1, between TGA's 2 and 3 and after TGA4 support alignment of the TGA's.
A two-wavelength Littrow alignment procedure using the SPDP laser is used to align
the compressors.