1. An apparatus, comprising:
a first panel comprising a first surface disposed in a first plane parallel to a longitudinal axis;
a first light source positioned along the first surface of the first panel;
a second panel comprising a second surface disposed in a second plane parallel to the longitudinal axis and rotatably coupled to the first panel to rotate about the longitudinal axis;
a second light source positioned along the second surface of the second panel; and
at least one magnet coupled to a rear side of at least one of the first and second panels,
wherein the first light source is coupled to a front side of the first panel and the second light source is coupled to a front side of the second panel.
2. The apparatus of claim 1, wherein the first light source comprises a first light emitting diode (LED) and the second light source comprises a second LED.
3. The apparatus of claim 1, further comprising at least one reflective device coupled to at least one of a rear side of the first panel and a rear side of the second panel.
4. The apparatus of claim 1, further comprising a third light source coupled to at least one of a rear side of the first panel and a rear side of the second panel.
5. The apparatus of claim 4, wherein the third light source comprises at least one light emitting diode (LED).
6. The apparatus of claim 4, further comprising a fourth light source coupled to at least one of the rear side of the first panel and the rear side of the second panel.
7. The apparatus of claim 6, wherein the fourth light source comprises at least one light emitting diode (LED).
8. The apparatus of claim 6, wherein the third light source is operable in an intermittent onoff state.
9. The apparatus of claim 1, further comprising a first panel lens disposed over the first light source and a second panel lens disposed over the second light source.
10. The apparatus of claim 9, wherein the first panel lens and the second panel lens each comprise a colored tint.
11. The apparatus of claim 1, wherein the first light source is operable in an intermittent onoff state.
12. The apparatus of claim 1, wherein the second panel is rotatable from a 0 degree orientation to about a 180 degree orientation with respect to the first panel.
13. The apparatus of claim 1, wherein the first light source is operable independent of the second light source.
14. The apparatus of claim 1, wherein the first panel and the second panel are C-shaped.
15. The apparatus of claim 1, wherein the second panel is rotatable independent of the first panel.
16. An apparatus, comprising:
a first panel comprising at least a first point positioned along a longitudinal axis;
a first light source coupled to the first panel;
a second panel rotatably coupled to the first panel at the first point to rotate about the longitudinal axis;
a second light source coupled to the second panel; and
at least one magnet coupled to a rear side of at least one of the first and second panels,
wherein the first light source is coupled to a front side of the first panel and the second light source is coupled to a front side of the second panel.
17. An apparatus, comprising:
a first panel comprising a first surface;
a first LED light source coupled to the first panel;
a second panel comprising a second surface and rotatably coupled to the first panel; and
a second LED light source coupled to the second panel,
wherein the second panel is rotatable to a desired orientation with respect to the first panel,
wherein when the desired orientation is a 180 degree orientation, the first surface and the second surface are both positioned in a first plane and facing the same direction, and
wherein when the desired orientation is a 0 degree orientation, the first surface and the second surface are facing opposite directions and the first panel abuts the second panel.
18. The apparatus of claim 16, wherein the first panel further comprises a second point positioned along the longitudinal axis, the second panel being rotatably coupled to the first panel at the second point, the first point and the second point being distal from one another.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An apparatus for modulating an optical carrier, the apparatus including:
a modulator configured to modulate a radio-frequency (RF) signal from an RF input of the modulator onto an optical carrier signal from an optical input of the modulator to generate a modulated signal; and
an optical apparatus configured to feed back to the optical input of the modulator at least a portion of the optical carrier and even-order sideband components of the modulated signal to the optical input of the modulator and to not feed back the odd-order sideband components of the modulated signal.
2. The apparatus of claim 1, wherein the modulator comprises a push-pull modulator.
3. The apparatus of claim 2, wherein the push-pull modulator includes a Mach-Zehnder interferometer.
4. The apparatus of claim 2, wherein the push-pull modulator includes a Michelson interferometer.
5. The apparatus of claim 1, wherein the optical apparatus comprises an optical resonator, and wherein the optical apparatus is configured to feed back the carrier and even-order sideband components through at least a portion of the modulator.
6. The apparatus of claim 5, wherein the optical resonator comprises a Fabry-Perot resonator.
7. The apparatus of claim 6, wherein the optical resonator includes a semi-transparent mirror and a splitter disposed on a side of the modulator at which the optical input of the modulator is located.
8. The apparatus of claim 7, wherein the optical resonator further includes a mirror disposed at a side of the modulator opposite the side of the modulator at which the optical input of the modulator is located.
9. The apparatus of claim 7, wherein the optical resonator further includes a splitter disposed between the modulator and the mirror.
10. The apparatus of claim 1, wherein the apparatus is further configured to output the odd-order sideband components.
11. The apparatus of claim 10, further comprising a filter configured to suppress odd-order sideband components other than at least one first-order sideband component.
12. A method of modulating a radio-frequency (RF) signal onto an optical carrier signal, the method including:
modulating an RF input signal onto an optical carrier signal to produce a modulated signal; and
feeding back at least a portion of optical carrier and even-order sideband components of the modulated signal, without feeding back odd-order sideband components of the modulated signal, and combining the at least a portion of the optical carrier and even-order sideband components with the optical carrier signal prior to said modulating.
13. The method of claim 12, further comprising filtering out odd-order sideband components other than at least a portion of at least one first-order sideband component to obtain a modulated output signal.
14. The method of claim 12, further comprising separating the optical carrier and even-order sideband components of the modulated signal from the odd-order sideband components of the modulated signal prior to said feeding back.
15. An apparatus for modulating an optical carrier, the apparatus including:
a separating modulator configured to modulate a radio-frequency (RF) signal from an RF input of the modulator onto an optical carrier signal from an optical input of the modulator to generate a modulated signal and to substantially separate resulting first-order sidebands from the optical carrier signal; and
an optical apparatus configured to feed back at least a portion of the optical carrier signal to the optical input of the modulator and to substantially suppress feedback of the first-order sideband components of the modulated signal.
16. The apparatus of claim 15, further including: an output configured to collect at least a portion of the first-order sidebands of the modulated signal.
17. A method of modulating a radio-frequency (RF) signal onto an optical carrier signal, the method including:
modulating the RF input signal onto an input optical carrier signal to produce a modulated signal;
substantially separating resulting first-order sidebands in the modulated signal from an optical carrier signal component in the modulated signal;
feeding back at least a portion of the optical carrier signal component separated from the first-order sidebands while suppressing feedback of the first-order sidebands components of the modulated signal; and
combining the at least a portion of the optical carrier signal component with the input optical carrier signal prior to said modulating.