A high dynamic range projector (HDRP) comprising: at least one spatial light modulator having red, green and blue digital light projector (DLP) chips ; a laser light source including red , green , and blue (RGB) pulsed laser light systems configured to illuminate respective DLP chips ; and a central processing unit (CPU) coupled to the DLP chips and respective RGB laser light systems , wherein the CPU is configured to determine a minimum average power of each of the RGB laser light systems at a frame rate based on a desired contrast ratio, the RGB laser light systems each being configured to output pulses synchronously with displacement of selective digital micro mirrors of the corresponding laser light system to an "on" position, characterized in that the green pulsed laser light system includes: a pump outputting a pulsed broadband light beam having a 1 to 20 nm bandwidth, a second harmonic generator (SHG) receiving the broadband light beam; and multiple thermoelectric coolers configured to impose a temperature gradient within a nonlinear crystal of the SHG so as to provide phase-matching conditions for a plurality of wavelengths within the bandwidth of the broadband light beam along substantially an entire length of the nonlinear crystal , wherein the green light beam from the nonlinear crystal has a broad conversion bandwidth substantially half the bandwidth of the pump broadband light beam, the broad conversion bandwidth being sufficient to suppress speckles on a screen . at least one spatial light modulator having red, green and blue digital light projector (DLP) chips ; a laser light source including red , green , and blue (RGB) pulsed laser light systems configured to illuminate respective DLP chips ; and a central processing unit (CPU) coupled to the DLP chips and respective RGB laser light systems , wherein the CPU is configured to determine a minimum average power of each of the RGB laser light systems at a frame rate based on a desired contrast ratio, the RGB laser light systems each being configured to output pulses synchronously with displacement of selective digital micro mirrors of the corresponding laser light system to an "on" position, characterized in that the green pulsed laser light system includes: a pump outputting a pulsed broadband light beam having a 1 to 20 nm bandwidth, a second harmonic generator (SHG) receiving the broadband light beam; and multiple thermoelectric coolers configured to impose a temperature gradient within a nonlinear crystal of the SHG so as to provide phase-matching conditions for a plurality of wavelengths within the bandwidth of the broadband light beam along substantially an entire length of the nonlinear crystal , wherein the green light beam from the nonlinear crystal has a broad conversion bandwidth substantially half the bandwidth of the pump broadband light beam, the broad conversion bandwidth being sufficient to suppress speckles on a screen . a pump outputting a pulsed broadband light beam having a 1 to 20 nm bandwidth, a second harmonic generator (SHG) receiving the broadband light beam; and multiple thermoelectric coolers configured to impose a temperature gradient within a nonlinear crystal of the SHG so as to provide phase-matching conditions for a plurality of wavelengths within the bandwidth of the broadband light beam along substantially an entire length of the nonlinear crystal , wherein the green light beam from the nonlinear crystal has a broad conversion bandwidth substantially half the bandwidth of the pump broadband light beam, the broad conversion bandwidth being sufficient to suppress speckles on a screen . <EOS>